Zoom

-added zoom to game field on load
-team flag always shows
-captain can drop pin for flag (should also probably add an alert when the map loads to do this)

Handling for enemy and enemy flag annotations:
-enemy added to map if within enemy radius constant
-map zooms in on enemy flag if within certain radius constant 
-enemy flag added to map if within certain radius constant

-there's some bug where if we don't choose ricky as teammate, he is an enemy, not sure why this is happening but we should just make sure we make Ricky our teammate in demo