add templates for issues and PR`s

Signed-off-by: Ruslan Semagin <[email protected]>

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug Report
+about: Report a bug
+title: "[BUG] "
+labels: bug
+assignees: ''
+
+---
+
+**Description**
+A clear and concise description of what the bug is.
+
+**Steps to Reproduce**
+1. Step one
+2. Step two
+3. ...
+
+**Expected Behavior**
+What you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Environment (please complete the following information):**
+- OS: [e.g. Windows, macOS, Linux]
+- Version: [e.g. 1.0.0]
+- Go Version: [e.g. 1.18]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature Request
+about: Suggest a new feature
+title: "[FEATURE] "
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/PULL_REQUEST_TEMPLATE.md

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+---
+name: Pull Request
+about: Describe your changes
+title: "[PR] "
+labels: ''
+assignees: ''
+
+---
+
+**Description**
+Please include a summary of the changes and the issue(s) being addressed. Include any motivation and context.
+
+**Related Issue**
+If applicable, link to the related issue(s).
+
+**How Has This Been Tested?**
+Describe the tests that were run to verify your changes.
+
+**Checklist:**
+- [ ] I have read the [CONTRIBUTING.md](CONTRIBUTING.md) guidelines
+- [ ] My code follows the project’s style guide
+- [ ] I have made corresponding changes to the documentation
+- [ ] I have added tests to cover my changes
+- [ ] All tests pass locally
+
+**Additional Context**
+Add any other context about the pull request here.