Merge pull request #6 from levelsoftware/feature/customizable-icons

feature: Ability to customize icons; avoid large icon dependency

.gitignore

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 /node_modules
 /umd
 npm-debug.log*
+.vscode

docs/markdown/7-Icons.md

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+Default icons are selected from [Font Awesome](https://fontawesome.com/) for controls and file types. These icons can be customized in two different ways:
+
+### Custom Icon Map
+
+You can pass a map to override the default icons with alternatives from Font Awesome. You'll need to install the Font Awesome package that contains your desired icon.
+
+```bash
+npm install @fortawesome/free-brands-svg-icons
+```
+
+Then, pass your map with overrides to `FileBrowser`.
+
+```js
+import { faCodepen } from '@fortawesome/free-brands-svg-icons';
+
+<FileBrowser icons={{ code: faCodepen }}>
+```
+
+### Custom Icon Component w/ Map
+
+You can implement a whole new `Icon` component to render icons, that accepts icons from your custom map of icons. Remember that by default, the map will contain Font Awesome ligatures. Your `Icon` component should implement the following `IconProps` props, based on a subset of `FontAwesomeIcon`.
+
+```typescript
+export interface IconProps {
+  icon: any;
+  spin?: boolean;
+  className?: string;
+  color?: string;
+  fixedWidth?: boolean;
+  size?: 'xs' | 'lg' | 'sm';
+  style?: CSSProperties;
+}
+```
+
+You can then pass your icon component to the FileBrowser:
+
+```javascript
+<FileBrowser icons={{ code: faCodepen }} Icon={MyIconComponent}>
+```
+
+Your icon component will be called wherever an icon exists in the UI:
+
+```javascript
+<Icon icon={icons.code} />
+```
+
+### Available Icons
+
+- checkActive
+- checkInactive
+- desc
+- asc
+- list
+- folder
+- folderCreate
+- folderOpen
+- smallThumbnail
+- largetThumbnail
+- angleRight
+- angleDown
+- download
+- upload
+- trash
+- directoryUp
+- fallbackIcon
+- symlink
+- hidden
+- loading
+- file
+- license
+- code
+- config
+- model
+- database
+- text
+- archive
+- csv
+- image
+- pdf
+- word
+- video
+- info
+- key
+- lock
+- music
+- flash
+- terminal
+- authors
+- adobe
+- git
+- linux
+- nodejs
+- php
+- python
+- ubuntu