Reviewed in this essay: Kim’s Convenience, from Soulpepper Theatre Company. Written by Ins Choi and directed by Weyni Mengesha. Until February 11th at Young Centre for the Performing Arts, 55 Mill Street, Building 49, Toronto. Reopens May 17–June 9, 2012. 416-866-8666 or www.soulpepper.ca. Building a play around a racial stereotype is risky business, especially when…