added IMetadataSaver

MediaBrowser.Controller/Library/IMetadataSaver.cs

@@ -0,0 +1,27 @@
+using MediaBrowser.Controller.Entities;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Controller.Library
+{
+    /// <summary>
+    /// Interface IMetadataSaver
+    /// </summary>
+    public interface IMetadataSaver
+    {
+        /// <summary>
+        /// Supportses the specified item.
+        /// </summary>
+        /// <param name="item">The item.</param>
+        /// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
+        bool Supports(BaseItem item);
+
+        /// <summary>
+        /// Saves the specified item.
+        /// </summary>
+        /// <param name="item">The item.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns>Task.</returns>
+        Task Save(BaseItem item, CancellationToken cancellationToken);
+    }
+}

MediaBrowser.Controller/MediaBrowser.Controller.csproj

@@ -76,6 +76,7 @@
     <Compile Include="Entities\MusicVideo.cs" />
     <Compile Include="Library\ILibraryPostScanTask.cs" />
     <Compile Include="Library\ILibraryPrescanTask.cs" />
+    <Compile Include="Library\IMetadataSaver.cs" />
     <Compile Include="Localization\ILocalizationManager.cs" />
     <Compile Include="Providers\Movies\FanArtMovieUpdatesPrescanTask.cs" />
     <Compile Include="Providers\Movies\MovieDbImagesProvider.cs" />