[Multi-Player] Add Public & Private Rooms Options

[Santiii727]

Basically how my method would work, before the IP appears and creating the game mode

New windows appear, Public game - Private game - Split Screen (This remains the same in the first multiplayer menu)

And of the 2 separate room methods, Create Room or Join Room appear, In the case of the public room, it would be the traditional connection method.

On the other hand, if someone wants to create a private one, another window should appear saying create password and those who join, enter the password, in case the password command is already there, that should not automatically appear.

It would be a good method of connections in the future.