Two French writers take on the notion of would-be writers on the run. Only one gets away with it. Julien Parme By Florian Zeller Translated from the French by Christopher Moncrieff. Pushkin Press, 246 pages. Tokyo Fiancee by Amélie Northomb Translated from the French by Alison Anderson. Europa Editions, 152 pages. Reviewed by Tommy Wallach…