Initial API setup and basic program functioning

Emergence.services/Interface/IService.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Emergence.services.Interface
+{
+    public interface IService<T> where T : class
+    {
+        public Task<IList<T>> GetAllAsync();
+        public Task<T> GetByIdAsync(int id);
+    }
+}