The two-time Tony nominee is busier than ever with 1776, A Beautiful Noise and Ain't No Mo' --- Emilio Sosa is making up for lost time. The 55-year-old costume designer admits he wasn't a theatre kid while growing up in the Dominican Republic and the South Bronx. But that changed when he started sweeping the floors of a costume shop at age 21. More than three decades later, Sosa is an in-demand Broadway costume desig…