Nicki Minaj and Cassie have joined forces for a video in the model of Lady Gaga and Beyoncé’s “Telephone”: An epic, rainbow-bright, gender-bending tale of revenge crimes against the entire male population. I didn’t even know they made colors so vivid. The clip is for “The Boys”, a bubblegummy single that will appear on the reissue of Nicki Minaj’s Pink Friday: Roman Reloaded, which is out…