By ANTHONY VIOLANTINews Critic11/26/99Last year, during his first day on the job as a computer programmer, Dave Schulz got a call from Los Angeles. On the phone was Robby Takac of the Goo Goo Dolls who were about to embark on a worldwide tour. "Hey dude," Takac told Schulz, a keyboard player with the local bandC.O. Jones, "we need you. Pack your bags and come out here."Schulz, 25, quit the job on the spot and a few hours later was on a plane to L.A.And that's how Schulz started touring with one of the biggest bands in the world. Fourteen months later, Schulz has gone around the world twice wit