Ingredient details are starting to appear on popular soft-drink bottles and cans via QR codes as major brands respond to consumer demands for transparency. What's happening? According to a report from NBC News, the American Beverage Association, the trade group that represents PepsiCo, The Coca-Cola Co., and Keurig Dr Pepper, is behind the new initiative. Brands taking part range from Coke and Pepsi to Dr Pepper, Celsius, Monster Energy, Polar …