chore: add github templates (algolia#47)

Author: aallam

.github/ISSUE_TEMPLATE/Bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve our libraries
+
+---
+
+<!--
+ Thanks for participating in this project! We will try to answer as soon as possible 🙏
+-->
+
+**Describe the bug 🐛** 
+A clear and concise description of what the bug is.
+
+**To Reproduce 🔍** 
+Steps to reproduce the behavior:
+
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior 💭** 
+A clear and concise description of what you expected to happen.
+
+**Screenshots 🖥** 
+If applicable, add screenshots to help explain your problem.
+
+**Environment:**
+
+- OS: [e.g. iOS, android, web]
+- Library Version [e.g. 1.1.0]
+
+**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
+
+---
+
+<!--
+ Thanks for participating in this project! We will try to answer as soon as possible 🙏
+-->
+
+**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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+| Q | A |
+|-----------------|----------|
+| Bug fix? | yes/no |
+| New feature? | yes/no |
+| BC breaks? | no |
+| Related Issue | Fix #... |
+| Need Doc update | yes/no |
+
+## Describe your change
+
+<!-- 
+ Please describe your change, add as much detail as 
+ necessary to understand your code.
+-->
+
+## What problem is this fixing?
+
+<!-- 
+ Please include everything needed to understand the problem, 
+ its context and consequences, and, if possible, how to recreate it.
+-->