ST. LOUIS — Anheuser-Busch InBev S.A., the world’s largest brewer, is planning to launch Bud Light Golden Wheat this fall, a move designed to tap into the growing wheat segment. The beer uses unfiltered wheat, orange and coriander, giving it a sweeter taste and cloudier look. Bud Light Golden Wheat has 118 calories and 8.3 grams of carbohydrates, compared with 110 calories and 6.6 grams of carbohydrates in Bud Light. The new beer also has slightly less alcohol at 4.1% by volume, compared with 4.2% for Bud Light.