Brandon Crawford may turn out to be the feel-good story of this year’s NFL draft. Sure, the former Marine is a long shot to get picked, but he’s overcome the odds before. Once a promising high school prospect, Crawford’s hope of playing college football went down the drain after getting arrested his senior year. But Crawford persevered, working in a factory for a short time and eventually enlisting in the Marine Corps. After leaving the Corps in 2003 with an honorable discharge, Crawford walked on at Ball State — 10 years after he last played a down — and eventually…