Here come the cannabis events. Sure, we’ve had the High Times Cannabis Cups events in Detroit for a few years now, and Ann Arbor’s long-running Hash Bash, that one magical day in April each year where law enforcement turns a blind eye to open tokers gathered at the University of Michigan’s Diag, has been a tradition since the ’70s. But this weekend, Ypsilanti will host its first officially licensed cannabis event with the inaugural Canna…