Breathe easy Titans fans, Vince Young found his shake-and-bake groove Friday. His passing game didn’t look bad, either. Playing only the first half, Young went 13-of-19 for 162 yards passing and a touchdown, and also scored a TD rushing in a 28-17 preseason victory over the Buffalo Bills. It was a much-needed performance from Young and a starting offense that had failed to produce a score in eight…