Bulk Add to Collection (#674)

* Fixed the typeahead not having the same size input box as other inputs

* Implemented the ability to add multiple series to a collection through bulk operations flow. Updated book parser to handle "@import url('...');" syntax as well as @import '...';

* Implemented the ability to create a new Collection tag via bulk operations flow.

API/Interfaces/Repositories/ISeriesRepository.cs

@@ -54,5 +54,6 @@ namespace API.Interfaces.Repositories
         Task<PagedList<Series>> GetFullSeriesForLibraryIdAsync(int libraryId, UserParams userParams);
         Task<Series> GetFullSeriesForSeriesIdAsync(int seriesId);
         Task<Chunk> GetChunkInfo(int libraryId = 0);
+        Task<IList<SeriesMetadata>> GetSeriesMetadataForIdsAsync(IEnumerable<int> seriesIds);
     }
 }