Slant 9: Bold Asian American Images, Aurora Picture Show’s ninth annual film festival, breaks a few stereotypes with 11 quirky shorts. There’s Waiting for a Train, Oscar Bucher’s hybrid documentary about Tokyo cowboy musician Toshio Hirano; Machine With Wishbone, Randall Okita’s delightful live-action-but-looks-like-stop-motion film; Survivors, Soham Mehta’s 13-minute zombie movie;…