Add Globalcloudpay Gateway

Author: dercoder

README.md

@@ -118,6 +118,7 @@ Gateway | Composer Package | Maintainer
 [eWAY](https://github.com/thephpleague/omnipay-eway) | omnipay/eway | [Kayla Daniels](https://github.com/kayladnls)
 [First Data](https://github.com/thephpleague/omnipay-firstdata) | omnipay/firstdata | [Andrew Coates](https://github.com/coatesap)
 [Fasapay](https://github.com/andreas22/omnipay-fasapay) | andreas22/omnipay-fasapay | [Andreas Christodoulou](https://github.com/andreas22)
+[Globalcloudpay](https://github.com/dercoder/omnipay-globalcloudpay) | dercoder/omnipay-globalcloudpay | [Alexander Fedra](https://github.com/dercoder)
 [GoCardless](https://github.com/thephpleague/omnipay-gocardless) | omnipay/gocardless | [Kayla Daniels](https://github.com/kayladnls)
 [Manual](https://github.com/thephpleague/omnipay-manual) | omnipay/manual | [Kayla Daniels](https://github.com/kayladnls)
 [Migs](https://github.com/thephpleague/omnipay-migs) | omnipay/migs | [Kayla Daniels](https://github.com/kayladnls)