Add dao to get inbound sms by id

app/dao/inbound_sms_dao.py

@@ -47,3 +47,7 @@ def delete_inbound_sms_created_more_than_a_week_ago():
     ).delete(synchronize_session='fetch')
 
     return deleted
+
+
+def dao_get_inbound_sms_by_id(inbound_id):
+    return InboundSms.query.filter_by(id=inbound_id).one()