Students were awestruck Thursday by an art form they never expected to see at the Albright-Knox - a surprise performance by the Goo Goo DollsBy JANE KWIATKOWSKINews Staff Reporter3/15/2002It was contemporary art, the high school students were told, crafted in a rock medium that was to be unveiled at the end of a field trip Thursday morning at the Albright-Knox Art Gallery. "Great, another sculpture," said Brandon Kiffer, a 17-year-old junior at Olean High School, with one eye on his watch and the other on the bus. But just as the tarp that covered this "special installation" dropped to the flo