refactor(Schema): Don't use .schema.yaml extension

Using this extension mimicked a pure JSON Schema but was unecessary and causes unecssaary complications elsewhere

schema/Article.schema.yaml

@@ -1,6 +1,6 @@
 title: Article
 '@id': schema:Article
-extends: CreativeWork.schema.yaml
+extends: CreativeWork
 role: primary
 status: unstable
 properties:
@@ -9,7 +9,7 @@ properties:
     description: |
       The computational environment in which the document should be executed.
     allOf:
-      - $ref: Environment.schema.yaml
+      - $ref: Environment
 
 required:
   # See Google's list of required properties at

schema/AudioObject.schema.yaml

@@ -1,6 +1,6 @@
 title: AudioObject
 '@id': schema:AudioObject
-extends: MediaObject.schema.yaml
+extends: MediaObject
 role: secondary
 status: stable
 description: |

schema/BlockContent.schema.yaml

@@ -1,12 +1,12 @@
 title: BlockContent
 description: Block content.
 anyOf:
-  - $ref: CodeBlock.schema.yaml
-  - $ref: CodeChunk.schema.yaml
-  - $ref: Heading.schema.yaml
-  - $ref: List.schema.yaml
-  - $ref: ListItem.schema.yaml
-  - $ref: Paragraph.schema.yaml
-  - $ref: QuoteBlock.schema.yaml
-  - $ref: Table.schema.yaml
-  - $ref: ThematicBreak.schema.yaml
+  - $ref: CodeBlock
+  - $ref: CodeChunk
+  - $ref: Heading
+  - $ref: List
+  - $ref: ListItem
+  - $ref: Paragraph
+  - $ref: QuoteBlock
+  - $ref: Table
+  - $ref: ThematicBreak

schema/Brand.schema.yaml

@@ -1,6 +1,6 @@
 title: Brand
 '@id': schema:Brand
-extends: Thing.schema.yaml
+extends: Thing
 role: tertiary
 status: unstable
 description: |
@@ -13,7 +13,7 @@ properties:
     anyOf:
       - type: string
         format: uri
-      - $ref: ImageObject.schema.yaml
+      - $ref: ImageObject
   reviews:
     '@id': schema:review
     description: |

schema/Code.schema.yaml

@@ -1,6 +1,6 @@
 title: Code
 '@id': stencila:Code
-extends: Thing.schema.yaml
+extends: Thing
 role: secondary
 status: stable
 description: Inline code.

schema/CodeBlock.schema.yaml

@@ -1,6 +1,6 @@
 title: CodeBlock
 '@id': stencila:CodeBlock
-extends: Code.schema.yaml
+extends: Code
 role: secondary
 status: stable
 description: A code block.

schema/CodeChunk.schema.yaml

@@ -1,6 +1,6 @@
 title: CodeChunk
 '@id': stencila:CodeChunk
-extends: SoftwareSourceCode.schema.yaml
+extends: SoftwareSourceCode
 role: secondary
 status: unstable
 description: |
@@ -12,4 +12,4 @@ properties:
       Outputs from executing the chunk.
     type: array
     items:
-      $ref: Node.schema.yaml
+      $ref: Node

schema/CodeExpr.schema.yaml

@@ -1,11 +1,11 @@
 title: CodeExpr
 '@id': stencila:CodeExpr
-extends: SoftwareSourceCode.schema.yaml
+extends: SoftwareSourceCode
 role: secondary
 status: unstable
 description: An expression.
 properties:
   value:
     '@id': schema:value
     allOf:
-      - $ref: Node.schema.yaml
+      - $ref: Node

schema/Collection.schema.yaml

@@ -1,6 +1,6 @@
 title: Collection
 '@id': schema:Collection
-extends: CreativeWork.schema.yaml
+extends: CreativeWork
 role: secondary
 status: stable
 description: |

schema/ContactPoint.schema.yaml

@@ -1,6 +1,6 @@
 title: ContactPoint
 '@id': schema:contactPoint
-extends: Thing.schema.yaml
+extends: Thing
 role: tertiary
 status: unstable
 description: A contact point—for example, a R&D department. https://schema.org/ContactPoint.

schema/CreativeWork.schema.yaml

@@ -1,6 +1,6 @@
 title: CreativeWork
 '@id': schema:CreativeWork
-extends: Thing.schema.yaml
+extends: Thing
 role: base
 status: stable
 description: |
@@ -13,8 +13,8 @@ properties:
     type: array
     items:
       anyOf:
-        - $ref: Person.schema.yaml
-        - $ref: Organization.schema.yaml
+        - $ref: Person
+        - $ref: Organization
   citations:
     '@id': schema:citation
     description: |
@@ -24,15 +24,15 @@ properties:
     items:
       anyOf:
         - type: string
-        - $ref: CreativeWork.schema.yaml
+        - $ref: CreativeWork
   content:
     # We have added "content" because the existing schema.org property "text" implies
     # only unstructured text content.
     '@id': stencila:content
     description: The structured content of this creative work c.f. property `text`.
     type: array
     items:
-      $ref: Node.schema.yaml
+      $ref: Node
   dateCreated:
     '@id': schema:dateCreated
     description: Date/time of creation.
@@ -70,22 +70,22 @@ properties:
       Persons who edited the CreativeWork.
     type: array
     items:
-      $ref: Person.schema.yaml
+      $ref: Person
   funders:
     '@id': schema:funder
     description: |
       Person or organisation that funded the CreativeWork.
     type: array
     items:
       anyOf:
-        - $ref: Person.schema.yaml
-        - $ref: Organization.schema.yaml
+        - $ref: Person
+        - $ref: Organization
   isPartOf:
     '@id': schema:isPartOf
     description: |
       An item or other CreativeWork that this CreativeWork is a part of.
     allOf:
-      - $ref: CreativeWork.schema.yaml
+      - $ref: CreativeWork
   licenses:
     '@id': schema:license
     description: |
@@ -95,7 +95,7 @@ properties:
       anyOf:
         - type: string
           format: uri
-        - $ref: CreativeWork.schema.yaml
+        - $ref: CreativeWork
   parts:
     # The name "parts" seems more intuitive for users and developers than schema.orgs's "hasParts".
     # We provide the latter as an alias.
@@ -107,14 +107,14 @@ properties:
       such as Articles, Datatables, Tables and more.
     type: array
     items:
-      $ref: CreativeWork.schema.yaml
+      $ref: CreativeWork
   publisher:
     '@id': schema:publisher
     description: |
       A publisher of the CreativeWork.
     anyOf:
-      - $ref: Person.schema.yaml
-      - $ref: Organization.schema.yaml
+      - $ref: Person
+      - $ref: Organization
   text:
     '@id': schema:text
     description: The textual content of this creative work.

schema/Datatable.schema.yaml

@@ -1,6 +1,6 @@
 title: Datatable
 '@id': stencila:Datatable
-extends: CreativeWork.schema.yaml
+extends: CreativeWork
 role: primary
 status: experimental
 description: A table of data.
@@ -9,6 +9,6 @@ properties:
     description: TODO
     type: array
     items:
-      $ref: DatatableColumn.schema.yaml
+      $ref: DatatableColumn
 required:
   - columns

schema/DatatableColumn.schema.yaml

@@ -1,6 +1,6 @@
 title: DatatableColumn
 '@id': stencila:DatatableColumn
-extends: Thing.schema.yaml
+extends: Thing
 role: secondary
 status: experimental
 properties:
@@ -11,7 +11,7 @@ properties:
     description: The schema to use to validate data in the column.
     type: object
     allOf:
-      - $ref: DatatableColumnSchema.schema.yaml
+      - $ref: DatatableColumnSchema
   values:
     description: The values of the column.
     type: array

schema/DatatableColumnSchema.schema.yaml

@@ -1,6 +1,6 @@
 title: DatatableColumnSchema
 '@id': stencila:DatatableColumnSchema
-extends: Thing.schema.yaml
+extends: Thing
 role: tertiary
 status: experimental
 properties:

schema/Delete.schema.yaml

@@ -1,6 +1,6 @@
 title: Delete
 '@id': stencila:Delete
-extends: Mark.schema.yaml
+extends: Mark
 role: secondary
 status: stable
 description: Content that is marked for deletion

schema/Emphasis.schema.yaml

@@ -1,6 +1,6 @@
 title: Emphasis
 '@id': stencila:Emphasis
-extends: Mark.schema.yaml
+extends: Mark
 role: secondary
 status: stable
 description: Emphasised content.

schema/Environment.schema.yaml

@@ -1,6 +1,6 @@
 title: Environment
 '@id': stencila:Environment
-extends: Thing.schema.yaml
+extends: Thing
 role: primary
 status: experimental
 description: A computational environment.
@@ -10,19 +10,19 @@ properties:
     description: Other environments that this environment extends by adding or removing packages.,
     type: array
     items:
-      $ref: Environment.schema.yaml
+      $ref: Environment
   adds:
     '@id': stencila:adds
     description: The packages that this environment adds to the base environments listed under `extends` (if any).,
     type: array
     items:
-      $ref: SoftwareSourceCode.schema.yaml
+      $ref: SoftwareSourceCode
   removes:
     '@id': stencila:removes
     description: The packages that this environment removes from the base environments listed under `extends` (if any).,
     type: array
     items:
-      $ref: SoftwareSourceCode.schema.yaml
+      $ref: SoftwareSourceCode
   environmentSource:
     '@id': stencila:environmentSource
     description: |

schema/Heading.schema.yaml

@@ -1,6 +1,6 @@
 title: Heading
 '@id': stencila:Heading
-extends: Thing.schema.yaml
+extends: Thing
 role: secondary
 status: experimental
 description: Heading
@@ -13,7 +13,7 @@ properties:
     description: Content of the heading.
     type: array
     items:
-      $ref: InlineContent.schema.yaml
+      $ref: InlineContent
 required:
   - depth
   - content

schema/ImageObject.schema.yaml

@@ -1,6 +1,6 @@
 title: ImageObject
 '@id': schema:ImageObject
-extends: MediaObject.schema.yaml
+extends: MediaObject
 role: secondary
 status: stable
 description: |
@@ -16,4 +16,4 @@ properties:
     description: |
       Thumbnail image of this image.
     allOf:
-      - $ref: ImageObject.schema.yaml
+      - $ref: ImageObject

schema/Include.schema.yaml

@@ -4,7 +4,7 @@ description: |
   A directive to include content from an external source (e.g. file, URL) or content.
 role: secondary
 status: experimental
-extends: Thing.schema.yaml
+extends: Thing
 properties:
   source:
     description: The source of the content.
@@ -19,6 +19,6 @@ properties:
     description: The content to be included.
     type: array
     items:
-      $ref: Node.schema.yaml
+      $ref: Node
 required:
   - source

schema/InlineContent.schema.yaml

@@ -6,13 +6,13 @@ anyOf:
   - type: integer
   - type: number
   - type: string
-  - $ref: Emphasis.schema.yaml
-  - $ref: Strong.schema.yaml
-  - $ref: Delete.schema.yaml
-  - $ref: Subscript.schema.yaml
-  - $ref: Superscript.schema.yaml
-  - $ref: Quote.schema.yaml
-  - $ref: Code.schema.yaml
-  - $ref: CodeExpr.schema.yaml
-  - $ref: Link.schema.yaml
-  - $ref: ImageObject.schema.yaml
+  - $ref: Emphasis
+  - $ref: Strong
+  - $ref: Delete
+  - $ref: Subscript
+  - $ref: Superscript
+  - $ref: Quote
+  - $ref: Code
+  - $ref: CodeExpr
+  - $ref: Link
+  - $ref: ImageObject

schema/Link.schema.yaml

@@ -1,6 +1,6 @@
 title: Link
 '@id': stencila:Link
-extends: Thing.schema.yaml
+extends: Thing
 role: secondary
 status: unstable
 description: A link.
@@ -9,7 +9,7 @@ properties:
     '@id': stencila:content
     type: array
     items:
-      $ref: InlineContent.schema.yaml
+      $ref: InlineContent
   target:
     '@id': stencila:target
     type: string