add netcore and refactoring

M2Mqtt/WinRT/Fx.cs

@@ -13,7 +13,7 @@ and the Eclipse Distribution License is available at
 Contributors:
    Paolo Patierno - initial API and implementation and/or initial documentation
 */
-
+#if !NETCOREAPP
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -33,4 +33,5 @@ namespace uPLibrary.Networking.M2Mqtt
 
         public static void SleepThread(int millisecondsTimeout) { Task.Delay(millisecondsTimeout).RunSynchronously(); }
     }
-}
+}
+#endif

M2Mqtt/WinRT/Hashtable.cs

@@ -13,7 +13,7 @@ and the Eclipse Distribution License is available at
 Contributors:
    Paolo Patierno - initial API and implementation and/or initial documentation
 */
-
+#if !NETCOREAPP
 using System.Collections.Generic;
 
 namespace uPLibrary.Networking.M2Mqtt
@@ -25,3 +25,4 @@ namespace uPLibrary.Networking.M2Mqtt
     {
     }
 }
+#endif

M2Mqtt/WinRT/MqttNetworkChannel.cs

@@ -13,7 +13,7 @@ and the Eclipse Distribution License is available at
 Contributors:
    Paolo Patierno - initial API and implementation and/or initial documentation
 */
-
+#if !NETCOREAPP
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -177,3 +177,4 @@ namespace uPLibrary.Networking.M2Mqtt
         }
     }
 }
+#endif

M2Mqtt/WinRT/Queue.cs

@@ -13,7 +13,7 @@ and the Eclipse Distribution License is available at
 Contributors:
    Paolo Patierno - initial API and implementation and/or initial documentation
 */
-
+#if !NETCOREAPP
 using System.Collections.Generic;
 
 namespace uPLibrary.Networking.M2Mqtt
@@ -25,3 +25,4 @@ namespace uPLibrary.Networking.M2Mqtt
     {
     }
 }
+#endif