added ControllableByUserId to sessions url

MediaBrowser.Model/Querying/SessionQuery.cs

@@ -0,0 +1,19 @@
+
+namespace MediaBrowser.Model.Querying
+{
+    /// <summary>
+    /// Class SessionQuery
+    /// </summary>
+    public class SessionQuery
+    {
+        /// <summary>
+        /// Filter by sessions that are allowed to be controlled by a given user
+        /// </summary>
+        public string ControllableByUserId { get; set; }
+
+        /// <summary>
+        /// Filter by sessions that either do or do not support remote control. Default returns all sessions.
+        /// </summary>
+        public bool? SupportsRemoteControl { get; set; }
+    }
+}