Added a button to the main menu to create singleplayer games with 0 to 7 NPCs (1-8 total players).
- Playing without NPCs might result in unexpected/missing behavior for cards that interact with opponents. — e.g. stealing coins from or giving dice to an opponent won't do anything.
Added options in the lobby settings to change the behavior of NPCs.
- How often should NPCs play cards, if possible?
- Should NPCs primarily play cards favorable or unfavorable for themselves?
- Should NPCs always target the first, last or a random player when selecting opponents?