PHOTO: The movie Brian's Song celebrated the friendship between Brian Piccolo (right) and Gale Sayers (left) of the Chicago Bears, but Piccolo's more courageous stand was on a 1963 afternoon while playing for Wake Forest. He stood up to racists to defend Maryland ground-breaker Darryl Hill. Visit my website homepage, TomShanahan.Report By TOM SHANAHAN A fan shouting racial slurs at an African American athlete was repulsive but far from unprecedented. Adding to the shame, though, was no one…