Moved Position to tools, so as to use it in World as well.
Renamed WorldTiles to WorldTile. Stupid mistake.
Added an empty space solution for WorldMap. Should probably be done better in the future.
Hero now implements WorldMapObject, so it can be placed on the world map
Player now has a list of all heroes it has, and method for getting that list
World now takes list of players as argument, instead of just two players
Created (incomplete) WorldMap. Is mostly a copy of BattleMap as of now, more functionality to come