“Dreamgirls” is a blast from the past, loaded with Motown soul, soaring voices, glitzy costumes and sharp choreography. The show gleams with the force of the stardom that is center to its plot. Originally staged in 1981, the show is most familiar to contemporary audiences as the 2006 movie staring Beyoncé, Jennifer Hudson, Eddie Murphy and Jamie Foxx. While the McCarter Theatre’s production of ...