Don't Spawn Useless Forger/Framer

[Deantwo]

Now that we have two mafia factions, some setups don't even have Town in them.

In a game with no Sheriff or Investigator, Forger/Framer becomes totally useless.

So I suggest we make it so that if there is no chance of Sheriff and Investigator in a setup, make Forger/Framer not spawn from randoms.

And no, framing an Administrator/Consigliere's target is not useful in anyway if there is no Town.