Groundhog Day, the movie, hung in the air at the Craft Center as John Calipari spoke of Kentucky’s game Saturday at South Carolina. As far as day-before-the-game news conferences go, Calipari had been there, done that. Twenty-five times, counting exhibitions. His material seemed a bit threadbare. Or he was distracted. Or he needs new writers. When asked about the Cats’ development at this stage of the season…