Add: Add pull request template

.github/pull_request_template.md

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+## Description of Changes
+
+### Type of Change
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to change)
+- [ ] Documentation update
+- [ ] Other (please describe)
+
+### Purpose of Change
+Explain the motivation for these changes. What problem are you solving?
+
+### Details
+Provide a clear and concise description of the changes made:
+- 
+- 
+- 
+
+### Related Issues
+- Fixes #(issue number)
+- Related to #(issue number)
+
+### Checklist
+Please check if your PR fulfills these requirements:
+- [ ] I have performed a self-review of my own code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have added tests that prove my fix/feature works
+- [ ] My changes generate no new warnings
+- [ ] I have updated the documentation accordingly
+- [ ] I have added/updated relevant test cases
+
+### Additional Context
+Add any other context about the pull request here. Screenshots, comparisons, or any additional information that might help reviewers understand the changes.
+
+### Verification Steps
+Describe the steps to verify the changes:
+1. 
+2. 
+3. 
+
+### Performance Impact (if applicable)
+Describe any potential performance implications of these changes.
+
+### Potential Risks
+List any potential risks or side effects of these changes:
+- 
+- 
+
+### Reviewers
+@mention specific team members or maintainers who should review this PR