LONELY & BLUE...(LP)Otis Redding's recording career really only lasted five years, from 1962 through 1967 (seven studio albums in all), and the balance of it, along with his biggest hits, really only came in the last two years of that time, with his biggest hit and first number one, "(Sittin' On) The Dock of the Bay," released after his death. All of it was enough, though, to establish Redding as the greatest performer of the classic deep soul era, a designation he