chore: add Issue templates

.github/ISSUE_TEMPLATE/bug_report.md

+---
+name: Bug report
+about: Create a bug report to help us improve
+
+---
+
+## 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. -->
+
+## Logs
+<!-- Please add logs in case of any crash or applicable error. -->
+
+## Screenshots
+<!-- If applicable, add screenshots to help explain your problem. -->
+
+## Devices and Versions
+
+<!-- Version can be found by opening the side menu and then clicking on "Settings" and then "About" -->
+Your Rocket.Chat.Android version: (e.g. 2.1.0)
+Your Rocket.Chat Server version: (e.g. 0.63.1-develop)
+
+<!-- Found a bug? List all devices that reproduced it and all that doesn't -->
+Mobile device model and OS version: (e.g. "Nexus 7 - Android 6.0.1")
+
+## Additional context
+<!-- Add any other context about the problem here. -->
+

.github/ISSUE_TEMPLATE/chore.md

+---
+name: Chore
+about: Issues related to docs, workflow, dependency and others
+
+---
+
+## Describe the chore
+<!-- A clear and concise description of what you want to do. -->
+
+## Devices and Versions
+
+<!-- Version can be found by opening the side menu and then clicking on "Settings" and then "About" -->
+Your Rocket.Chat.Android version: (e.g. 2.1.0)
+Your Rocket.Chat Server version: (e.g. 0.63.1-develop)
+
+<!-- Found a bug? List all devices that reproduced it and all that doesn't -->
+Mobile device model and OS version: (e.g. "Nexus 7 - Android 6.0.1")

.github/ISSUE_TEMPLATE/feature_request.md

+---
+name: Feature request
+about: Suggest an idea for this project
+
+---
+
+## Describe the feature you'd like
+<!-- A clear and concise description of what you want to happen. -->
+
+## Devices and Versions
+
+<!-- Version can be found by opening the side menu and then clicking on "Settings" and then "About" -->
+Your Rocket.Chat.Android version: (e.g. 2.1.0)
+Your Rocket.Chat Server version: (e.g. 0.63.1-develop)
+
+<!-- Found a bug? List all devices that reproduced it and all that doesn't -->
+Mobile device model and OS version: (e.g. "Nexus 7 - Android 6.0.1")
+
+## Screenshots
+<!-- Add screenshots to provide context or UI mockup. -->
+
+## Additional context
+<!-- Add any other context about the problem here. -->
+