Started A* algorithm. Added parent Tile to Tile class.
Started on A* algorithm.
Added custom priorety queue implementation.
Added Path class, Implemented A* --havent tested--, started TileList class.
Fixed tile gameobject variable in Tile script. Path script now returns Tile path.
Pathfinding now works.
Fixed movement with pathfinding algorithm. fixes #3
Fixed problem of player not accepting movement after invalid tile selected.