Add a cheat mode

[Zillode]

Add a cheat mode to increase the amount of money.
This makes it more accessible for a group if certain ppl put in a higher buy-in amount.

The cheating process can be implemented using the option menu on the client, but as soon as it is opened, the server should display that player x is inside of the cheating window

[Zillode]

Improvement:
Can only cheat on the server view so everybody can see who is cheating.
Still inform the other users using a toast message on their private view