Draw button

[Midonik]

I'm playing with @DreJaDe and he suggested to add an draw button to game. With it a player could offer the other ones a draw. That would mean that if it was a gem bet gems return to all players. That would be useful cause sometimes there are situations where breaking through is practically impossible. It will prevent the gems from getting their gems stuck in a game. I think there should be some timer after sending one (like 8 turns of wait) so a lossing player won't spam it each turn hoping for misclick.