By Madeline Coleman The Austrian businessman built a sports empire under the umbrella of the global energy drink. AUSTIN, Texas — Dietrich Mateschitz, who founded Red Bull and successfully pushed the energy drink company into the Formula One world, has died. He was 78 years old. His death was confirmed just before qualifying at the United States Grand Prix. Formula One president and CEO Stefano Domenicali said in a statement: “I am deeply saddened by the news that Dietrich Mateschitz, a hugely respected and much-loved member of the Formula 1 family has passed away. He was an incredible visiona…