Added base plugin, in preperation for the API

src/Message/AbstractRequest.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Omnipay\Inforbank\Message;
+
+use Omnipay\Common\Message\AbstractRequest as BaseAbstractRequest;
+
+abstract class AbstractRequest extends BaseAbstractRequest
+{
+    abstract protected function generateSignature();
+
+    public function getClientId()
+    {
+        return $this->getParameter('clientId');
+    }
+
+    public function getClientSecret()
+    {
+        return $this->getParameter('clientSecret');
+    }
+}