LegacyJim “Gomer Pyle” Nabors, who owed his entire career to Andy Griffith, once told me about the first time the two ever met,  after Andy had seen his nightclub act in the early 1960s. “I don’t know what you do,” Andy told the young singer-comedian. “But you do it very well.” For Andy Griffith, who died July 3 at age 86, there may have a level of self-recognition in that observation. Ten years earlier, Andy himself had exploded into the …