Add countries fixture removed in Oscar
Add countries fixture removed in Oscar

This fixture was removed in Oscar, but the easiest way to get the tests
to pass is to bundle it with this extension again.

lpakula/django-oscar-paypal,phedoreanu/django-oscar-paypal,nfletton/django-oscar-paypal,nfletton/django-oscar-paypal,britco/django-oscar-paypal,embedded1/django-oscar-paypal,bharling/django-oscar-worldpay,django-oscar/django-oscar-paypal,embedded1/django-oscar-paypal,enodyt/django-oscar-paypal,ZachGoldberg/django-oscar-paypal,britco/django-oscar-paypal,evonove/django-oscar-paypal,lpakula/django-oscar-paypal,vintasoftware/django-oscar-paypal,nfletton/django-oscar-paypal,enodyt/django-oscar-paypal,FedeDR/django-oscar-paypal,bharling/django-oscar-worldpay,britco/django-oscar-paypal,vintasoftware/django-oscar-paypal,django-oscar/django-oscar-paypal,vintasoftware/django-oscar-paypal,enodyt/django-oscar-paypal,embedded1/django-oscar-paypal,phedoreanu/django-oscar-paypal,ZachGoldberg/django-oscar-paypal,st8st8/django-oscar-paypal,FedeDR/django-oscar-paypal,ZachGoldberg/django-oscar-paypal,FedeDR/django-oscar-paypal,evonove/django-oscar-paypal,django-oscar/django-oscar-paypal,st8st8/django-oscar-paypal,bharling/django-oscar-worldpay,lpakula/django-oscar-paypal,st8st8/django-oscar-paypal,phedoreanu/django-oscar-paypal,evonove/django-oscar-paypal,bharling/django-oscar-worldpay