Jay-Z and Sean 'Diddy' Combs have been accused in a civil lawsuit of sexually assaulting and raping a 13-year-old girl in 2000. Initially filed in October in New York with Sean 'Diddy' Combs as the defendant, the lawsuit was refiled on Sunday, adding Jay-Z, whose real name is Shawn Carter, as a co-defendant, according to NBC News. Jay-Z is married …