Group access constraints

* adds new decorators for all three important groups
* reorganize some default group settings for setup_data.py

konova/management/commands/setup_data.py

@@ -27,13 +27,13 @@ TEST_ORGANISATION_DATA = [
 
 GROUPS_DATA = [
         {
-            "name": DEFAULT_GROUP,
+            "name": _(DEFAULT_GROUP),
         },
         {
-            "name": ZB_GROUP,
+            "name": _(ZB_GROUP),
         },
         {
-            "name": ETS_GROUP,
+            "name": _(ETS_GROUP),
         },
     ]