Sort file manager by missing files

The new file manager in EE 3 now highlights files that are missing from the file system. We need the ability to sort and/or group those so we can easily see all of them in a file upload location that may have hundreds or thousands of files. Paging through all of that to see what ones are missing is insanely tedious. Also, it would be great to see if any of those missing ones are referenced in any entries. That way, we could just bulk delete from the DB without having to either scour the DB to see if we can find that file name to determine if we can delete or look for the missing file in a backup so we can restore it. (This seems like it could be a natural extension/part of the File Pruning tool I requested in https://ellislab.com/forums/viewthread/248504/