Added "DEATH's DOOR" mechanic.

This was previously a mechanic already setup for when a player's deck is empty and they proceed to perform an illegal action (either snapping the pile wrong and getting judged for it, or judging a player wrong when they snapped correctly). When that happens, that player becomes a ghost, functionally unable to perform any game actions and just watch. Other players can see their purple transparent hand floating around doing whatever it wants.

Added more visual flair to this mechanic now. The player affected should be able to hear church bells along with a visual indicator of their impending doom.

This mechanic is also applied to points. Instead of endlessly reducing your points down the negatives, the game locks you at 0 points (marking you at DEATH's DOOR), and any illegal action from then on will also turn you into a ghost.

Please do report any bugs you find at any channels you can find and have fun!