PHOTOS BY T. CHARLES ERICKSON Maggie Bofill and Jorge Luna co-star in George Street Playhouse’s production of “Baipás.” “Who could they be?,” asks Antonio, looking out into the audience of the New Brunswick Performing Arts Center in George Street Playhouse’s current production of “Baipás,” by the Oscar-nominated Puerto Rican writer Jacobo Morales. “Spectators in some strange play?,” Lorena responds. As an audience member, it throws you off guard, of course, to be talked about in a play. But throwing people off guard seems to be much of Morales’ strategy in this unusual and, in some ways, avant…