[TIMOB-15356] Android: Google Maps v2 Module - Expose getErrorDialog() for users to automatically download / update or enable Google Play Services

As per GMaps v2 Module Documentation we should check if the Module is present and alert the user to download / update or enable the Google Play Services and location. This is very confusing for end-users and there is a native way for doing this automatically on Android SDK. I think you guys should expose getErrorDialog() so the API itself will not only check for Google Play Services, but also instruct the user to either download, update or enable the Google Play Services. As per the method documentation: Returns a dialog to address the provided errorCode. The returned dialog displays a localized message about the error and upon user confirmation (by tapping on dialog) will direct them to the Play Store if Google Play services is out of date or missing, or to system settings if Google Play services is disabled on the device. http://developer.android.com/reference/com/google/android/gms/common/GooglePlayServicesUtil.html#getErrorDialog(int, android.app.Activity, int) This would probably eliminate a lot of crashes adn black screens on apps using this new module. This is the standard behaviour of most Android apps using the new GMaps v2 SDK.