Rep. Eric Swalwell denied allegations of rape and sexual assault in a social media post that was filmed Friday at the Beverly Hills mansion of his eccentric billionaire benefactor, The Post has learned. Multiple sources confirmed that the video Swalwell recorded of his full-throated denial was taken from a room inside the 9,700-square-foot home of Stephen Cloobeck, who’s also been shacking up with an alleged honeytrapper accused of burglarizing the home of rich, older men in Los Angeles. “A lot