[TASK] Add issue templates and configuration (#58)

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: 🐞 Bug report
+description: Create a report to help us improve.
+labels: [bug]
+assignees:
+  - gilbertsoft
+body:
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Code of Conduct
+      description: By submitting this issue, you agree to follow our [Code of Conduct](https://github.com/GsActions/commit-message-checker/blob/main/CODE_OF_CONDUCT.md).
+      options:
+        - label: I agree to follow this project's Code of Conduct
+          required: true
+  - type: checkboxes
+    attributes:
+      label: Is there an existing issue for this?
+      description: Please search to see if an issue already exists for the bug you encountered.
+      options:
+        - label: I have searched the existing issues
+          required: true
+  - type: dropdown
+    id: gh-runner
+    attributes:
+      label: GitHub-hosted runner
+      description: What GitHub-hosted runner are you using?
+      multiple: false
+      options:
+        - ubuntu-latest
+        - ubuntu-20.04
+        - ubuntu-18.04
+        - windows-latest
+        - windows-2022
+        - windows-2019
+        - windows-2016
+        - macos-latest
+        - macos-11
+        - macos-10.15
+        - Other (please describe below)
+    validations:
+      required: true
+  - type: textarea
+    id: other-runner
+    attributes:
+      label: Additional runner information
+      description: Please provide more information about the used runner if you selected `Other` above.
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Current Behavior
+      description: A concise description of what you're experiencing.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Expected Behavior
+      description: A concise description of what you expected to happen.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Steps To Reproduce
+      description: Steps to reproduce the behavior.
+      placeholder: |
+        1. In this environment...
+        2. With this config...
+        3. Run '...'
+        4. See error...
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Anything else?
+      description: |
+        Links? References? Anything that will give us more context about the issue you are encountering!
+
+        Tip: You can attach images or log files by clicking this area to highlight it and then dragging files in.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: 🚑 Community support
+    url: https://github.com/GsActions/commit-message-checker/discussions
+    about: Please ask and answer questions here.

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: 🚀 Feature request
+description: Suggest an idea for this project.
+labels: [enhancement]
+assignees:
+  - gilbertsoft
+body:
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Code of Conduct
+      description: By submitting this issue, you agree to follow our [Code of Conduct](https://github.com/GsActions/commit-message-checker/blob/main/CODE_OF_CONDUCT.md).
+      options:
+        - label: I agree to follow this project's Code of Conduct
+          required: true
+  - type: checkboxes
+    attributes:
+      label: Is there an existing issue for this?
+      description: Please search to see if an issue already exists for the feature you request.
+      options:
+        - label: I have searched the existing issues
+          required: true
+  - type: checkboxes
+    id: sponsoring
+    attributes:
+      label: Are you willing to sponsor your idea?
+      description: Supporting a proposal can speed up the development of your idea and you can also better influence the final solution.
+      options:
+        - label: Yes, I like to sponsor this request
+          required: false
+  - type: textarea
+    attributes:
+      label: Is your feature request related to a problem? Please describe
+      description: A clear and concise description of what the problem is. Ex. I'm always frustrated when...
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Describe the solution you'd like
+      description: A clear and concise description of what you want to happen.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Describe alternatives you've considered
+      description: A clear and concise description of any alternative solutions or features you've considered.
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Additional context
+      description: Add any other context or screenshots about the feature request here.
+    validations:
+      required: false