British mainstays like George MacKay are quickly getting used to fielding questions about James Bond casting rumors, with everyone from the likes of Tom Francis to MacKay’s own “ Rose of Nevada ” co-star Callum Turner reportedly being considered. But for the “1917” and “Pride” actor who’s in love with the “process” of filmmaking — and used to transforming — there’s an entirely different 007 role he’d love to play. “I quite like the idea of a villain — maybe a one and done, chew the scenery a