support sending upnp events

MediaBrowser.Common/Net/IHttpClient.cs

@@ -43,6 +43,14 @@ namespace MediaBrowser.Common.Net
         /// <returns>Task{Stream}.</returns>
         Task<Stream> Get(HttpRequestOptions options);
 
+        /// <summary>
+        /// Sends the asynchronous.
+        /// </summary>
+        /// <param name="options">The options.</param>
+        /// <param name="httpMethod">The HTTP method.</param>
+        /// <returns>Task{HttpResponseInfo}.</returns>
+        Task<HttpResponseInfo> SendAsync(HttpRequestOptions options, string httpMethod);
+
         /// <summary>
         /// Performs a POST request
         /// </summary>