Added base plugin, in preperation for the API

src/Message/CompletePurchaseResponse.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Omnipay\Inforbank\Message;
+
+class CompletePurchaseResponse extends PurchaseResponse
+{
+    public function isSuccessful()
+    {
+        return ($this->data->transaction->status === "Success");
+    }
+
+    public function isRedirect()
+    {
+        return false;
+    }
+
+    public function getStatus()
+    {
+        return $this->data->transaction->status;
+    }
+}