Merge proces, enable signing of the assembly.

Frameworks/MQTTnet.NetStandard/Server/IMqttServerFactory.cs

@@ -0,0 +1,13 @@
+using System.Collections.Generic;
+using MQTTnet.Adapter;
+using MQTTnet.Diagnostics;
+
+namespace MQTTnet.Server
+{
+    public interface IMqttServerFactory
+    {
+        IMqttServer CreateMqttServer();
+
+        IMqttServer CreateMqttServer(IEnumerable<IMqttServerAdapter> adapters, IMqttNetLogger logger);
+    }
+}