Feature request: Option to restrict start()/startGeofences() to only when inside a geofence

[Jonny1987]

I require the tracking to only be able to start inside a geofence. Currently I try to restrict this in the UI by checking the users location when the app is opened and only allow the user interaction which starts tracking if the location is within the bounds of the geofence.

However, it's possible the user could open the app and then move outside the geofence and the UI item which starts tracking will still be displayed. (geofence tracking would need to be already turned on to allow the UI to change while the app is still open and the user moves).

It would be nice as a fallback if there was an option to not allow tracking to start (or to automatically stop it immediately) if the initial ENTER geofence event doesn't get triggered