Leading global FMCG manufacturers Kraft and Heinz are set for a merger that will create the third-largest food and drinks company in the USA and the fifth-largest in the world, according to reports. The merger is set to come about with the acquisition of Kraft Foods Group Inc. by Brazilian private-equity firm 3G Capital, in partnership with Warren Buffett’s Berkshire Hathaway Inc. The consortium had previously acquired Heinz two years …