Add in positive logging case for purge command

This is useful so we can see that it's doing things, which case is being
hit and know that an empty terminal for an hour isn't a bad thing

app/commands.py

@@ -119,9 +119,11 @@ def purge_functional_test_data(user_email_prefix):
         else:
             services = dao_fetch_all_services_by_user(usr.id)
             if services:
+                print(f"Deleting user {usr.id} which has related services")
                 for service in services:
                     delete_service_and_all_associated_db_objects(service)
             else:
+                print(f"Deleting user {usr.id} which does not have related services")
                 delete_user_verify_codes(usr)
                 delete_model_user(usr)