FARGO — Moments after crossing the 100-meter finish line in the Summit League Outdoor Track & Field Championships, a few teammates of North Dakota State sprinter Paige Renschler sang her happy birthday. They could have piped out another tune: Queen’s “We Are The Champions.” The sophomore from Fargo Shanley was in tune to the point of breaking a Summit record in the event. Not only that, it was the start of a major Bison rally that saw them overt…