[docs] Add Issue templates (#10)

Signed-off-by: Niyaz <[email protected]>

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: 🎯 Bug report
+description: Report a bug to help us improve Deckhouse
+labels:
+- 'type/bug'
+- 'status/needs-triage'
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for submitting a bug report!
+
+        Please fill out the template below to make it easier to debug your problem.
+  - type: checkboxes
+    attributes:
+      label: Preflight Checklist
+      description: Please ensure you've completed all of the following.
+      options:
+        - label: I agree to follow the [Code of Conduct](https://github.com/deckhouse/deckhouse/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
+          required: true
+        - label: I have searched the [issue tracker](https://github.com/deckhouse/deckhouse/issues) for an issue that matches the one I want to file, without success.
+          required: true
+  - type: input
+    attributes:
+      label: Version
+      description: |
+        What version of Deckhouse are you running?
+      placeholder: v1.0.0
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Expected Behavior
+      description: A clear and concise description of what you expected to happen.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Actual Behavior
+      description: A clear description of what actually happens.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Steps To Reproduce
+      description: Steps to reproduce the behavior if it is not self-explanatory.
+      placeholder: |
+        1. In this environment...
+        2. With this config...
+        3. Run '...'
+        4. See error...
+  - type: textarea
+    attributes:
+      label: Additional Information
+      description: Links? References? Anything that will give us more context about the issue that you are encountering!
+  - type: textarea
+    attributes:
+      label: Logs
+      description: Deckhouse application logs (if relevant).
+      render: shell

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+- name: 📚 Documentation
+  url: https://deckhouse.io/documentation/
+  about: Check the documentation for help
+
+- name: 🤔 Ask a question
+  url: https://github.com/deckhouse/deckhouse/discussions/new?category=q-a
+  about: Ask and discuss questions with other community members
+
+- name: 💬 Telegram channel [EN]
+  url: https://t.me/deckhouse
+  about: Please ask and answer questions here
+
+- name: 🇷🇺 Telegram channel [RU]
+  url: https://t.me/deckhouse_ru
+  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 Deckhouse
+labels:
+- 'type/enhancement'
+- 'status/needs-triage'
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for submitting a feature request!
+
+        Please describe what you would like to change/add and why in detail by filling out the template below.
+  - type: checkboxes
+    attributes:
+      label: Preflight Checklist
+      description: Please ensure you've completed all of the following.
+      options:
+        - label: I agree to follow the [Code of Conduct](https://github.com/deckhouse/deckhouse/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
+          required: true
+        - label: I have searched the [issue tracker](https://github.com/deckhouse/deckhouse/issues) for an issue that matches the one I want to file, without success.
+          required: true
+  - type: textarea
+    attributes:
+      label: Use case. Why is this important?
+      description: A clear and concise description of the problem you are seeking to solve with this feature request.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Proposed Solution
+      description: A clear and concise description of what would you like to happen.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Additional Information
+      description: Add any other context about the problem here.