Prior to his stint as a homosexual mobster – or “gayfella” – on HBO’s series, “The Sopranos” (1999- ), actor Joseph Gannascoli was doing bit parts – doorman here, security guard there – while keeping a steady job as a chef and restaurateur. His life’s ambition was never to be a celebrity. Instead, he stumbled into acting as a fun thing to do on the side while making foie gras for a living. But much like his mob alter ego, Gannascoli was mixed up in more nefarious affairs – gambling and fencing stolen goods chief among them – which became sources of inspiration not only for his “Sopranos”