revert to VB and update to new project file format

Pilz.Networking/UDPManager.cs

@@ -1,83 +0,0 @@
-using System;
-using global::System.Net;
-using global::System.Net.Sockets;
-using global::System.Threading;
-using System.Threading.Tasks;
-
-namespace Pilz.Networking
-{
-    public class UDPManager : ConnectionManagerBase
-    {
-        public UDPManager(int port) : base(port)
-        {
-            cancelToken = cancelTokenSource.Token;
-            client = new UdpClient(port);
-        }
-
-        private readonly UdpClient client;
-        private Task listenTask = null;
-        private readonly CancellationTokenSource cancelTokenSource = new CancellationTokenSource();
-        private readonly CancellationToken cancelToken;
-
-        public int MaxBufferSize { get; private set; } = 8192;
-
-        ~UDPManager()
-        {
-            client.Client.Shutdown(SocketShutdown.Both);
-            client.Close();
-        }
-
-        public override void Start()
-        {
-            if (!IsListening)
-            {
-                StartInternal();
-            }
-        }
-
-        private void StartInternal()
-        {
-            IsListening = true;
-            listenTask = Task.Run(() => { try { RetriveAnyData(cancelToken); } catch (Exception ex) { IsListening = false; } });
-        }
-
-        public override void Stop()
-        {
-            if (IsListening)
-            {
-                IsListening = false;
-                cancelTokenSource.Cancel();
-                listenTask.Wait();
-            }
-        }
-
-        protected override int GetBufferSize()
-        {
-            return MaxBufferSize;
-        }
-
-        private void RetriveAnyData(CancellationToken ct)
-        {
-            void doExit() => ct.ThrowIfCancellationRequested();
-            var receiveTask = client.ReceiveAsync();
-
-            // Wait for the data and cancel if requested
-            receiveTask.Wait(ct);
-            var buf = receiveTask.Result.Buffer;
-            string ip = receiveTask.Result.RemoteEndPoint.Address.ToString();
-            doExit();
-            ProcessRetrivedData(ip, buf);
-            doExit();
-            StartInternal();
-        }
-
-        protected override void SendData(IPEndPoint ep, byte[] buf)
-        {
-            var udp = new UdpClient();
-            udp.Connect(ep);
-            udp.Send(buf, buf.Length);
-            udp.Client.Shutdown(SocketShutdown.Both);
-            udp.Close();
-        }
-    }
-}