Table games drew a full house Sunday at the Parx Casino in Bucks County. Players gathered around 57 tables to play blackjack, roulette, baccarat, craps and three-card poker.  More slot machines have also been added, and a new room that opens in the fall will offer more kinds of poker.  The games are creating about 400 new jobs for dealers, supervisors and other workers at the casino on Street Road in Bensalem.