Sync My Show entry with TVDB Fav flag

Since this excellent program is so closely connected with The TVDB, it would probably be convenient to have it automatically set the TVDB Favorites flag (assuming you were logged in already, of course), whenever you added (or removed) a show to the TV Renamer's My Shows.

That way, when you go to TVDB, the list of My Favorites will be synchronized with TV Renamer's list.

As things currently stand there is no API method on thetvdb.com to do this, so it would rely on the developers of tvrename to use an unsupported method of setting favourites and also would require the app to store login details etc.

This may be included on the new site and api for thetvdb.com but not sure.