Client udp service

Example.Frontend/Program.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Net;
+using System.Net.Sockets;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
@@ -120,6 +121,7 @@ class Program
         
         DemoCheck.Show();
         Console.ReadKey();
+        
         //
         // const int iterations = 10000;
         // var timer = Stopwatch.StartNew();