Add release profile for permission pack app
Drop permission for external storage; keep up to 5 backups in private storage
Expose local backup copies via FileProvider
Request backup file from Google Drive and other apps when restoring
Refactor utility function for creating local copies of bitmaps
Create local copies when the user selects images to use
Bump version
prod: Remove 'test' flavor from version
prod: change app name
prod: change app icon
prod: change widget preview graphic
prod: run standard dex step
prod: set release flag