optimize FindByPath

MediaBrowser.Controller/Library/ILibraryManager.cs

@@ -56,6 +56,13 @@ namespace MediaBrowser.Controller.Library
         /// <returns>Task{Person}.</returns>
         Person GetPerson(string name);
 
+        /// <summary>
+        /// Finds the by path.
+        /// </summary>
+        /// <param name="path">The path.</param>
+        /// <returns>BaseItem.</returns>
+        BaseItem FindByPath(string path);
+        
         /// <summary>
         /// Gets the artist.
         /// </summary>