“Deadpool 2”: Electric Boogaloo…

“Deadpool”, the unapologetically R-rated clown prince of superheroes, has spawned a sequel that’s even more outrageously meta (and perversely funny) than its parent. “Deadpool 2” is the second in cowriter/producer/star Ryan Reynolds’ series of passion project-atonements for the grotesque misfire of 2011’s “Green Lantern” (words can’t convey my loathing of that movie) and his much maligned…