Bundesliga runners-up VfB Stuttgart have signed forward Ermedin Demirovic from Augsburg for a reported club record fee. Stuttgart said on Tuesday that the 26-year-old Bosnia and Herzegovina international has signed a four-year contract until 2028. According to news reports, Stuttgart have to pay €21 million ($22.9 million), plus add-ons, for Demirovic, who scored 15 goals and had 10 assists for Augsburg last season. “Ermedin Demirovic has proven his special quality over several years. He is one of the top strikers in the Bundesliga,” Stuttgart sporting director Fabian Wohlgemuth said. “Ermedin…