Robicheaux by James Lee Burke Simon & Schuster, $27.99, 445 pages, ISBN 978-1-5011-7684-3 Whenever a new book by James Lee Burke is released, I can’t wait to get my hands on it and promptly read it cover-to-cover.  It’s been that way since the early 1990s, when I heard him speak on NPR about a character he’d created; a fictional Cajun detective from New Iberia, Louisiana.  He was unique, this