Kaori, a former model, recently described years of ill treatment by the Japanese photographer Nobuyoshi Araki. “He treated me like an object,” she wrote in a blog post.Credit...Loulou d'Aki for The New York Times TOKYO — How much does an artist owe his muse? Last month a model who posed for Nobuyoshi Araki, Japan’s most notorious photographer, accused him of exploiting and bullying her for 16 year