Initial commit. Basic models mostly done.

venv/lib/python3.8/site-packages/django/contrib/admin/exceptions.py

@@ -0,0 +1,11 @@
+from django.core.exceptions import SuspiciousOperation
+
+
+class DisallowedModelAdminLookup(SuspiciousOperation):
+    """Invalid filter was passed to admin view via URL querystring"""
+    pass
+
+
+class DisallowedModelAdminToField(SuspiciousOperation):
+    """Invalid to_field was passed to admin view via URL query string"""
+    pass