Add buttons to change turns.
Add 'reveal' option to hold down enter and show your tiles.
Bugfix: Newly created objects will not be masked if reveal is held.
Add locking feature to stop drawing of cards between turns.
Lock trench tiles offturn. Rename 'reveal' to 'peek'. Fix bug where peek didn't end with the end of the turn.
Add peek toggle button.
Add SpriteLayers component, and use it with mask.
Remove Owned and Maskable from trench tiles.
Split component definitions into their own file.