Addie Morfoot ContributorIn Showtime’s new docuseries “Gossip” a recording of Donald Trump pretending to be his own publicist is played; a story about Tom Cruise’s front teeth falling out during a dinner with former New York Post editor-in-chief Col Allen is told; and 91-year-old Cindy Adams defends her past and present friendships with Roy Cohn, Imelda Marcos, John Gotti, Gen.