It's bizarre. It's disgusting. It's borderline psychopathic. That's how one of the characters describes an actual who-could-possibly-believe-it scheme of World War II British Intelligence in Operation Mincemeat, a wackadoodle frolic of a musical opening tonight at Broadway's Golden Theatre after a transfer from London, where it won the Olivier Award for Best New Musical and where it is still playing. Will you like it…