Add getters and setters for hashSecret, an optional authorization parameter

Author: eileenmcnaughton

src/AIMGateway.php

@@ -26,6 +26,7 @@ public function getDefaultParameters()
             'transactionKey'    => '',
             'testMode'          => false,
             'developerMode'     => false,
+            'hashSecret'        => '',
             'liveEndpoint'      => 'https://api2.authorize.net/xml/v1/request.api',
             'developerEndpoint' => 'https://apitest.authorize.net/xml/v1/request.api',
         );
@@ -61,6 +62,16 @@ public function setDeveloperMode($value)
         return $this->setParameter('developerMode', $value);
     }
 
+    public function setHashSecret($value)
+    {
+        return $this->setParameter('hashSecret', $value);
+    }
+
+    public function getHashSecret()
+    {
+        return $this->getParameter('hashSecret');
+    }
+
     public function setEndpoints($endpoints)
     {
         $this->setParameter('liveEndpoint', $endpoints['live']);

src/SIMGateway.php

@@ -53,16 +53,6 @@ public function setDeveloperMode($value)
         return $this->setParameter('developerMode', $value);
     }
 
-    public function getHashSecret()
-    {
-        return $this->getParameter('hashSecret');
-    }
-
-    public function setHashSecret($value)
-    {
-        return $this->setParameter('hashSecret', $value);
-    }
-
     public function authorize(array $parameters = array())
     {
         return $this->createRequest('\Omnipay\AuthorizeNet\Message\SIMAuthorizeRequest', $parameters);