feat: adds endpoints 'client contacts' and 'contacts' and integration tests for all existing endpoints.

src/Shared/BasePaymoModel.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace Novaloop.PaymoApi.Shared
+{
+    public class BasePaymoModel
+    {
+        public int Id { get; set; }
+        public DateTime CreatedOn { get; set; }
+        public DateTime UpdatedOn { get; set; }
+    }
+}