Added support for coarse location only

[j4nk3e]

Hi,

I added another permission for Android, which is called CoarseLocation. You can use it to request location permissions when the app only has ACCESS_COARSE_LOCATION in Manifest but not ACCESS_FINE_LOCATION. Without the change, requesting the Location permission always failed because tried to request the ACCESS_FINE_LOCATION permission which was blocked by the system if not declared in the Manifest.