admin: add invite administration

passbook/core/forms/invites.py

@@ -0,0 +1,14 @@
+"""passbook core invite form"""
+
+from django import forms
+
+from passbook.core.models import Invite
+
+
+class InviteForm(forms.ModelForm):
+    """InviteForm"""
+
+    class Meta:
+
+        model = Invite
+        fields = '__all__'