Only return the usage data for live services.

The list of trail mode services is only for platform admins, therefore the usage isn't needed for that page.

app/dao/organisation_dao.py

@@ -31,6 +31,13 @@ def dao_get_organisation_services(organisation_id):
     ).one().services
 
 
+def dao_get_organisation_live_services(organisation_id):
+    return Service.query.filter_by(
+        organisation_id=organisation_id,
+        restricted=False
+    ).all()
+
+
 def dao_get_organisation_by_id(organisation_id):
     return Organisation.query.filter_by(id=organisation_id).one()