* Refactored NC_ERRORS

+ Added client configuration api
* Refactored serverconfig

Step.Model/DTOModels/DTOClientConfigurationModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Step.Model.DTOModels
+{
+    public class DTOClientConfigurationModel
+    {
+        public string NcVendor;
+        public bool showHMI;
+    }
+}