Cleaning up the video & the subtitle api

Kyoo.Common/Controllers/ILibraryManager.cs

@@ -32,6 +32,7 @@ namespace Kyoo.Controllers
 		Task<Episode> GetEpisode(int id);
 		Task<Episode> GetEpisode(int showID, int seasonNumber, int episodeNumber);
 		Task<Genre> GetGenre(int id);
+		Task<Track> GetTrack(int id);
 		Task<Studio> GetStudio(int id);
 		Task<People> GetPeople(int id);
 		
@@ -42,7 +43,7 @@ namespace Kyoo.Controllers
 		Task<Season> GetSeason(string showSlug, int seasonNumber);
 		Task<Episode> GetEpisode(string showSlug, int seasonNumber, int episodeNumber);
 		Task<Episode> GetMovieEpisode(string movieSlug);
-		Task<Track> GetTrack(int id);
+		Task<Track> GetTrack(string slug);
 		Task<Genre> GetGenre(string slug);
 		Task<Studio> GetStudio(string slug);
 		Task<People> GetPeople(string slug);

Kyoo.Common/Controllers/Implementations/LibraryManager.cs

@@ -109,7 +109,12 @@ namespace Kyoo.Controllers
 		{
 			return EpisodeRepository.Get(showID, seasonNumber, episodeNumber);
 		}
-		
+
+		public Task<Track> GetTrack(string slug)
+		{
+			return TrackRepository.Get(slug);
+		}
+
 		public Task<Genre> GetGenre(int id)
 		{
 			return GenreRepository.Get(id);