Add LocationReceiver protocol for receiving location change events
Add MatchmakingDelegate protocol so controllers know when matches are found
Make HomeViewController implement RaceDelegate and MatchmakingDelegate
Add lobbyReady method to RaceDelegate protocol
Implement all wrapper methods for LocationManager
Implement TODOs in RaceController
- Implement LocationReceiver
- Add Match Flow methods
- Change init methods
Implement Data transmission for GameCenterController