By Lisa Richwine LOS ANGELES (Reuters) -Hollywood’s film academy on Friday banned Will Smith from attending the Oscars for 10 years after the best actor winner slapped presenter Chris Rock on stage at the Academy Awards ceremony 12 days ago. The board of governors of the Academy of Motion Picture Arts and Sciences took the action at a meeting held one week after Smith pre-emptively resigned from the group over his outburst at the live, televised event. “The 94th Oscars were meant to be a celebration of the many individuals in our community who did incredible work this past year,” academy Presi…