In a new series called “My Journey to the Oscars,” Variety catches up with the directors of the films shortlisted for the International Feature Oscar to discuss their road to the awards, what they’ve learned so far, and what’s taken them off guard. Asghar Farhadi, a two-time international Oscar winner for “A Separation” and “The Salesman,” is in the running for a third time with “A Hero,” which marks the Iranian auteur’s return to shooting in his country. It’s a drama about a man named Rahim (Am