It’s about time we start recognizing how great Ruth Negga is. The star of “Loving” and the recent Sundance film “Passing” has been doing consistently good work since she starred in the cult TV series “Misfits,” but she hasn’t really had a star vehicle until now. Ruth Negga is now set to play the legendary actress, singer, civil rights activist and French Resistance agent Josephine Baker in the new limited series “Josephine.”