Hudnall relives day JFK came through his ER BY FAITH HARPER fharper@tylerpaper.com http://www.tylerpaper.com/article/20121016/NEWS01/310169991/0/CLUBORGA02 It was 49 years ago, but Dr. John Hudnall can recount Nov. 22, 1963, so clearly that he said he can recall the sights and smells of the day. Hudnall was a resident working at Parkland Hospital in Dallas when President John F.…