MY PRESCRIPTIONBobby Womack's second album on Minit Records rivals his first, Fly Me to the Moon. He establishes himself firmly in the mold of his contemporaries: Wilson Pickett, Don Covay, Johnnie Taylor, and other top soul men. An accomplished writer, Womack's never handicapped by poor material, but never hesitates to redo popular songs by other writers. He scores with a funky rendition of "Fly Me to the Moon" (taken from his debut Minit LP), and with poorer