City UI more or less done, I think. Added checking restaurant owner before attacking/moving, and implemented double tap to confirm feature.
Merge remote-tracking branch 'origin/cityUI'

Conflicts:
	Code/core/src/main/java/utm/csc492/diamondfire/GameFunctions.java
	Code/core/src/main/java/utm/csc492/diamondfire/RestaurantActor.java
Cleaned up restaurantactor and cityscreen