added sync model objects

MediaBrowser.Model/Sync/SyncQuality.cs

@@ -0,0 +1,21 @@
+
+namespace MediaBrowser.Model.Sync
+{
+    public enum SyncQuality
+    {
+        /// <summary>
+        /// The good
+        /// </summary>
+        Good = 0,
+
+        /// <summary>
+        /// The better
+        /// </summary>
+        Better = 1,
+
+        /// <summary>
+        /// The best
+        /// </summary>
+        Best = 2
+    }
+}