HARARE – Convicted gold smuggler Ewan Macmillan has told Al Jazeera that President Emmerson Mnangagwa is his business partner, according to bombshell new revelations. Macmillan made the sensational claim to the TV network’s undercover reporters after they asked him to help them launder millions of dollars allegedly stuck in Hong Kong. “I’ve been doing gold since I was 19. I went to jail for the…