Tile:
    - automatic overlays to show unit stack depth

Pawn:
    -

Board:
    - support different grid direction
        Board.Orientation offset
        inverted even/odd row scheme
    - merge SearchBoard with Board ??

Game:
    - End Turn button in Select State
    - attack
        - infantry move after won fight
    - add options to hide moves/targets/assists even in action
    - HUD position left/right