Added default language pack (en-gb)

catalog/extension/payment/pp_pro_iframe.php

@@ -0,0 +1,7 @@
+<?php
+// Text
+$_['text_title']				= 'Credit or Debit Card';
+$_['text_secure_connection']	= 'Creating a secure connection...';
+
+// Error
+$_['error_connection']			= 'Could not connect to PayPal. Please contact the shop\'s administrator for assistance or choose a different payment method.';