Add GPL modules

MediaBrowser.Controller/Providers/IMetadataProvider.cs

@@ -0,0 +1,21 @@
+using MediaBrowser.Controller.Entities;
+
+namespace MediaBrowser.Controller.Providers
+{
+    /// <summary>
+    /// Marker interface
+    /// </summary>
+    public interface IMetadataProvider
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        string Name { get; }
+    }
+
+    public interface IMetadataProvider<TItemType> : IMetadataProvider
+           where TItemType : BaseItem
+    {
+    }
+}