Initial API setup and basic program functioning

Emergence.services/Extensions/ServiceBuilderExtension.cs

@@ -0,0 +1,19 @@
+using Emergence.services.Interface;
+using Emergence.services.Services;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Emergence.services.Extensions
+{
+    public static class ServiceBuilderExtension
+    {
+        public static IServiceCollection AddServices(this IServiceCollection services)
+        {
+            services = services.AddTransient<IUserService, UserService>();
+
+            return services;
+        }
+    }
+}