C.J. Watson carved out a 10-year NBA career with not just talent but also an ability to overcome odds and tune out doubters. So whenever the former Bulls guard encountered skepticism for his latest dream, he’d answer every “Why” with a “Why not?” That dream? To create children’s books. Watson, 36, has now published two titles: “CJ’s Big Dream” and “CJ’s Big Project.” The first came out last November, the second in March.