Add a BSD licensed QR code library

resources/qr_code/QRCodeException.php

@@ -0,0 +1,14 @@
+<?php
+/**
+ * This file is part of the phpQr package
+ *
+ * See @see QRCode class for description of package and license.
+ */
+
+/**
+ * A derived exception
+ *
+ * @author Maik Greubel <greubel@nkey.de>
+ * @package phpQr
+ */
+class QRCodeException extends ErrorException {};