feat: add guthub templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ""
+labels: bug
+assignees: IvanIhnatsiuk
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**Code snippet**
+Add your code snippet where error has been occurred.
+
+**Repo for reproducing**
+I would be highly appreciate if you can provide repository for reproducing your issue. It can significantly reduce the time for discovering and fixing the problem.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Smartphone (please complete the following information):**
+
+- Desktop OS: [e.g. Windows 10, MacOS 10.15.5]
+- Device: [e.g. iPhone8]
+- OS: [e.g. iOS 10.0]
+- RN version: [e.g. 0.68.2]
+- RN architecture: [e.g. old/new or paper/fabric]
+- JS engine: [e.g. JSC, Hermes, v8]
+- Library version: [e.g. 1.2.0]
+
+**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 an idea for this project
+title: ""
+labels: Feature
+assignees: IvanIhnatsiuk
+---
+
+**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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+## 📜 Description
+
+<!-- Describe your changes in detail -->
+
+## 💡 Motivation and Context
+
+<!-- Why is this change required? What problem does it solve? -->
+<!-- If it fixes an open issue, please link to the issue here. -->
+
+## 📢 Changelog
+
+<!-- High level overview of important changes -->
+<!-- If your changes don't affect one of platform/language below - then remove this platform/language -->
+
+### JS
+
+-
+-
+
+### iOS
+
+-
+-
+
+### Android
+
+-
+-
+
+## 🤔 How Has This Been Tested?
+
+<!-- Please describe in detail how you tested your changes. -->
+<!-- Include details of your testing environment, and the tests you ran to -->
+<!-- see how your change affects other areas of the code, etc. -->
+
+## 📸 Screenshots (if appropriate):
+
+<!-- Add screenshots/video if needed -->
+<!-- That would be highly appreciated if you can add how it looked before and after your changes -->
+
+## 📝 Checklist
+
+- [ ] CI successfully passed
+- [ ] I added new mocks and corresponding unit-tests if library API was changed