More updates to filter_obyfile.pl, now copes properly with aliases Can remove bluetooth.dll (+ 2107 other files!) to give a ROM which still links but it clearly doomed. Can remove FileList.dll (from gsprofilesrv, takes out 158 files).

Update filter_obyfile.pl to handle patchdata and some more alias cases.

Update static_dependencies.pl to handle dlls with interesting version numbers (e.g. backend.dll)