feat(tracks): add edition tags to output filenames

Extend track.edition to support a list of tags (e.g., ["IMAX", "3D"]) that are inserted into the output filename before the resolution.

unshackle/core/tracks/video.py

@@ -291,7 +291,7 @@ class Video(Track):
                             ],
                         )
                     ),
-                    self.edition,
+                    ", ".join(self.edition) if self.edition else None,
                 ],
             )
         )