Permission rethinking

* No detailed permissions due to django constraints on model-based permissions
* instead: logic controlled permission by group membership
* adds translations

konova/management/commands/setup.py

@@ -7,7 +7,7 @@ Created on: 15.12.20
 """
 from getpass import getpass
 
-from django.contrib.auth.models import User, Group, Permission
+from django.contrib.auth.models import User, Group
 from django.core.management import BaseCommand
 from django.db import transaction