Set up members app with models, migrations, permissions, and rules integration; updated dependencies and settings

members/rules.py

@@ -0,0 +1,9 @@
+from typing import Optional
+
+import rules
+from django.contrib.auth.models import AbstractUser
+
+
+@rules.predicate
+def is_member_manager(user: Optional[AbstractUser]) -> bool:
+    return user.has_perm('members.member_manager')