The six Garrett + Moulton company dancers might have been shot out of a circus cannon the way they zoomed and caromed around the ODC Theater stage in designer Julienne Weston’s gaudy striped and checked and polka-dotted get-ups. There was good reason for all the exuberant clowning around in “Zingo.” It was the first of three world premieres marking the 15th anniversary season of choreographers Janice Garrett and Charles Moulton’s ingratiating troupe. Seen at the opening on Thursday, Dec.