[videodb] refactor AddTvShow/AddPathsToTvShow a bit more - TODO:SQUASH???
[videodb] refactor SetDetailsForTvShow into Set/UpdateDetailsForTvShow
[videodb] don't store multipaths for tvshows, instead resolve and store per-path links.
[videodb] remove try/catch in SetDetailsForTvShow and drop additional indenting
[videodb] drop multipath links for tvshows from the database
[videodb] when refreshing a multiple-path show from the database, ensure we refresh all paths
[videodb] drop multipath's from the path table - they're no longer used for anything
[videos] when showing the info dialog on an item from the videodb, utilise the database id rather than searching by path
[videos] match multipath folders to items matching the first path from the videodb when fetching db info from files view