Add project files.

Core.Blueprint.Service.External/GatewayConfigurations/GatewayConfiguration.cs

@@ -0,0 +1,24 @@
+using Core.Blueprint.External;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Core.Blueprint.Service.External.GatewayConfigurations
+{
+    public record GatewayConfiguration
+    {
+        public GatewayConfiguration()
+        {
+            BlueprintServiceAPI = new BlueprintServiceApi();
+        }
+        public BlueprintServiceApi BlueprintServiceAPI { get; set; }
+    }
+
+    public record BlueprintServiceApi
+    {
+        public string Channel { get; set; }
+        public BaseEndpoint Endpoint { get; set; }
+    }
+}