Whatever that intangible ‘It’ factor is, the gods bestowed it on Denham ‘Denny’ Fouts in disproportionate quantities. He was blessed with more natural-born charisma than Leonardo Di Caprio, Brad Pitt and The Talented Mr Ripley put together. Denny Fouts exuded a carnal mojo of the kind that compelled a Greek king, German baron and a…