WIP: Add skeleton for MQTT extension based on part of OPC-UA extension.

For now generated code makes no sense but persistently-configurable-C-generating-extension infrastructure is there.

#!/bin/bash

set -e

CONTAINER=beremiz_sikuli_current

docker stop $CONTAINER
docker start $CONTAINER 
docker exec $CONTAINER bash -c "do_tests $1"
docker stop $CONTAINER