Added issue and pull request templates

.github/ISSUE_TEMPLATE/bug.md

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+---
+name: 🐛 Bug Report
+about: Submit a bug report to help us improve
+labels: "bug"
+---
+
+## 🐛 Bug Report
+
+(A clear and concise description of what the bug is)
+
+## To Reproduce
+
+(Write your steps here:)
+
+## Expected behavior
+
+<!--
+  How did you expect your project to behave?
+  It’s fine if you’re not sure your understanding is correct.
+  Write down what you thought would happen.
+-->
+
+(Write what you thought would happen.)
+
+## Actual Behavior
+
+<!--
+  Did something go wrong?
+  Is something broken, or not behaving as you expected?
+  Describe this section in detail, and attach screenshots if possible.
+  Don't only say "it doesn't work"!
+-->
+
+(Write what happened. Add screenshots, if applicable.)
+
+## Your Environment
+
+<!-- Include as many relevant details about the environment you experienced the bug in -->
+
+(Write Environment, Operating system and version etc.)

.github/ISSUE_TEMPLATE/documentation.md

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+---
+name: 📚 Documentation
+about: Report an issue related to documentation
+labels: "documentation"
+---
+
+## 📚 Documentation
+
+(A clear and concise description of what the issue is.)

.github/ISSUE_TEMPLATE/feature.md

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+---
+name: 🚀 Feature
+about: Submit a proposal for a new feature
+labels: "feature"
+---
+
+## 🚀 Feature
+
+(A clear and concise description of what the feature is.)
+
+## Motivation
+
+(Please outline the motivation for the proposal.)
+
+## Pitch
+
+(Please explain why this feature should be implemented and how it would be used.)

.github/PULL_REQUEST_TEMPLATE.md

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+<!--
+Thank you for sending the PR! We appreciate you spending the time to work on these changes.
+Help us understand your motivation by explaining why you decided to make this change.
+Happy contributing!
+-->
+
+## What type of PR is this? (check all applicable)
+
+- [ ] ♻️ Refactor
+- [ ] ✨ Feature
+- [ ] 🐛 Bug Fix
+- [ ] 👷 Optimization
+- [ ] 📝 Documentation Update
+- [ ] 🔖 Release
+- [ ] 🚩 Other
+
+## Motivation
+
+(Write your motivation here.)
+
+## Related PRs and Issues
+
+(If this PR is related to any other PR or resolves any issue or related to any issue link all related PR and issues here.)