1. Removed one of the duplicate GameBoards (left the one in controller
and refactored the classes that use it)
2.  Moved UnitType and BuildingType into their respective entity
packages for ease of editing later (when more units are added)
3.
	Big one:
	Tiles owner was a player, so I had to keep comparing it to the unit
owner which was an id.  Refactored to work.
Found more classes that broke when Gameboard was moved.  Fixed those
issues