Added MoveStep and Move classes
Added calculation of possible moves when a piece is clicked, but not yet calculating those for different move types, displaying them in the UI, or allowing them to be performed
Added game object. Sort-of performing moves when cells are clicked, but not able to subsequently move piece, and moves are all placeholder "single hop, any dir" affairs.
Piece moving now seems to work correctly, and turn order is enforced
Added robots.txt