Mafia: Fix smute deadchat, add duration/winner to /pg

-Added clearCharges and addCharges to night/standby actions.
-Added duration and winner information to /pg
-Fixed Smuted players able to deadchat.
Mafia Checker: clearCharges and addCharges
Merge pull request #763 from IceKirby/patch-29

Mafia: Fix smute deadchat, more info on /playedgames