add user profile settings about virtual episodes

MediaBrowser.Model/Configuration/UserConfiguration.cs

@@ -56,6 +56,8 @@ namespace MediaBrowser.Model.Configuration
 
         public bool IsDisabled { get; set; }
 
+        public bool DisplayVirtualEpisodes { get; set; }
+        
         /// <summary>
         /// Initializes a new instance of the <see cref="UserConfiguration" /> class.
         /// </summary>
@@ -63,6 +65,7 @@ namespace MediaBrowser.Model.Configuration
         {
             IsAdministrator = true;
             BlockNotRated = false;
+            DisplayVirtualEpisodes = true;
         }
     }
 }