From his childhood in Brussels’ notorious Molenbeek district, the Belgium international has developed into one of Europe’s most promising strikers and could be the long-term replacement for Didier Drogba at Stamford Bridge As auditions go, Michy Batshuayi could not have planned his any better. With Belgium leading 1-0 in the 75th minute of their last-16 tie against Hungary on Sunday, the 22-year-old of Congolese heritage who spent some of his…