Allow sponsors access to all roles on their units

It has been decided that a sponsor at a unit should have access to all roles at that unit. This includes all units accessible through hierarchical access.

Resolves: GREG-150

greg/migrations/0018_alter_identity_type.py

@@ -6,7 +6,7 @@ from django.db import migrations, models
 class Migration(migrations.Migration):
 
     dependencies = [
-        ("greg", "0018_add_ou_parent_relatedname"),
+        ("greg", "0017_consent_choices"),
     ]
 
     operations = [