You all, everybody! Dominic Monaghan is looking back on his shocking exit from “Lost” in an exclusive interview with The Post. “I think it was time, really,” said the 48-year-old actor, who starred as recovering drug addict Charlie Pace on the hit ABC series. “I really liked playing Charlie,” Monaghan continued, “but I got to a point about halfway through season three, when I was talking to [showrunner] Damon Lindelof and I said, ‘I’m either on drugs or off drugs, or I’m either looking after