Use fastlane to update metadata for app in Google Play Store

[nisrulz]

Checkout: https://docs.fastlane.tools/getting-started/android/setup/#setting-up-supply

• Validate when in PR state. Actually publish when merged to master.
• When merged to master and has a tag, upload changelog for that version
• Upload metadata for all languages i.e markets

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.