added HasImage to live tv objects

MediaBrowser.Controller/LiveTv/RecordingInfo.cs

@@ -107,6 +107,12 @@ namespace MediaBrowser.Controller.LiveTv
         /// <value>The community rating.</value>
         public float? CommunityRating { get; set; }
 
+        /// <summary>
+        /// Set this value to true or false if it is known via recording info whether there is an image or not.
+        /// Leave it null if the only way to determine is by requesting the image and handling the failure.
+        /// </summary>
+        public bool? HasImage { get; set; }
+
         public RecordingInfo()
         {
             Genres = new List<string>();