Need a change of pace? Bob Moyer reviews a novel that is probably unlike anything you’ve read in a long time. Reviewed by Robert P. Moyer THE CAT WHO SAVED BOOKS. By Sosuke Natsukawa. Translated by Louise Heal Kawai. Harpervia. 208 pages.  $15.19, paperback. A cat. Books. What more do you want you want? Well,…