Guy Ritchie is a filmmaker and series creator whose prodigious busyness in terms of both workload and story approach has its compensations. It’s foolish to expect what is so rarely a part of Ritchie’s subset of heist movies, from early ones like “Snatch” a generation ago, through to his latest, “ In the Grey .” In these films you won’t find much on the inside of what used to be known as “characters.” The surfaces, the outsides, are all. With “In the Grey,” you make your allowances as a viewer