Adds several features to the Plex/Web 2.0 client for Plex

Transmogrify for Plex adds several features to the Plex/Web 2.0 client for Plex.

Each feature can be individually enabled or disabled via the settings page.

These currently include:

- Adding a link to view the trailer for movies within Plex/Web
- Adding a link to view the letterboxd page for movies
- Adding a link to view the themoviedb page for movies
- Adding a link to view the tvdb page for tv shows
- Adding a link to view the IMDB page for movies, and display ratings
- Adding a link to view the trakt page for movies and tv shows, and display user ratings
- Adding a link to view the rotten tomatoes page for movies, and display critic and audience ratings
- Adding a random tv show/movie picker
- Adding a missing seasons and episodes view
- Adding a Can I Stream it? widget to movie pages
- Adding a movie/tv show filter for the main dashboard
- Adding an actor profile for cast members on movie pages
- Adding a server statistics page"