Member of Carolyn Dorfman Dance perform “Prima!” at the Gia Maione Prima Foundation Studio Theatre at the Grunin Center in Toms River, March 19. The new Gia Maione Prima Foundation Studio Theatre — a black box theater at the Jay and Linda Grunin Center for the Arts at Ocean County College in Toms River — opened on March 19, appropriately enough, with Carolyn Dorfman Dance premiering “Prima!,” which is set to the music of Louis Prima. The singing of Gia Maione Prima — Prima’s wife, who grew up in Toms River — was heard in the dance piece. The performance took place at 2 p.m., with a cocktail re…