San Antonio Rose"Until Hank Williams came along, it was just Bob Willis," says Willie Nelson. "He was it." And indeed he was, especially for the thousands in the Southwest who knew and loved the King of Western Swing. The colorful band leader composer fiddler from Turkey, Texas, lassoed the emotions of country and western fans nationwide. In the early 1940s, his records outsold those of any other recording artist. He was voted not only into the Country Music Hall of