Add a dummy Stripe plugin for testing purposes

src/pretix/plugins/stripe/payment.py

@@ -0,0 +1,12 @@
+from collections import OrderedDict
+from django.utils.translation import ugettext_lazy as _
+from django import forms
+
+from pretix.base.payment import BasePaymentProvider
+
+
+class Stripe(BasePaymentProvider):
+    identifier = 'stripe'
+    verbose_name = _('Credit Card via Stripe')
+    settings_form_fields = OrderedDict([
+    ])