She wants to be "publicly exonerated." She wants Mayor Bloomberg to personally welcome her back to class. And she feels "like Kanye effen West." Hooker-turned-tenured-teacher Melissa Petro is still seething over being yanked from her Bronx elementary-school art class and assigned to administrative work pending her possible firing, according to Facebook postings obtained by The Post. "Still in pieces after being interrogated yesterday by the DOE," she posted Tuesday. "Seriously, I feel like Kanye effen West." In response to a friend who asked, "Did you have a lawyer?" Petro wrote, "I had a UFT rep. Anyway, they didn't ask any...