*(minor): small refactor

passbook/providers/oauth/forms.py

@@ -0,0 +1,15 @@
+"""passbook OAuth2 Provider Forms"""
+
+from django import forms
+
+from passbook.providers.oauth.models import OAuth2Provider
+
+
+class OAuth2ProviderForm(forms.ModelForm):
+    """OAuth2 Provider form"""
+
+    class Meta:
+
+        model = OAuth2Provider
+        fields = ['name', 'redirect_uris', 'client_type',
+                  'authorization_grant_type', 'client_id', 'client_secret', ]