Brian Flores alleged in an explosive lawsuit that John Elway and the Broncos sat down with him in 2019 simply to meet the NFL’s “Rooney Rule” requirement. Not only was the opportunity with the Broncos a “sham,” but Flores, who is Black, said in the 58-page class action suit filed in Manhattan Federal Court on Tuesday that Elway showed up to the interview late and appeared disheveled and hungover. Elway, the two-time Super Bowl-winning Broncos quarterback who went on to run the organization from the executive suite, called the recently fired Miami Dolphins head coach’s allegations “false and de…