ST. PETERSBURG, Fla. — Hulk Hogan’s courtroom cage match with Gawker has apparently been bankrolled by a high-tech billionaire with a grudge against the news-and-gossip site.Two months after Hogan won a $140 million invasion-of-privacy verdict against Gawker for posting a sex tape of him, news reports say the pro wrestler is secretly backed by Silicon Valley venture capitalist Peter Thiel.Thiel, who co-founded PayPal and was an early investor in Facebook, was outed as gay by a Gawker-owned website in 2007, and …