Mai Yamamoto scored a team-high 20 points as Japan’s Paris Olympics-bound women’s basketball team rolled to a 125-57 victory over New Zealand in a warm-up game Thursday. Yamamoto made six of 10 three-point attempts and had seven assists in front of 11,624 fans at Tokyo’s Ariake Arena, the largest crowd ever for a Japan national women’s basketball game. Japan, ranked ninth in the world, led 39-15 at the end of the first quarter and 67-34 at halftime against 26th-ranked New Zealand. The team, nicknamed “Akatsuki Japan,” had 19 steals on the night in its first game since the 12-woman Olympic rost…