Add ExtendedCall to PLCObject as a replacement of RemoteExec and reflect it in eRPC interface.

ExtendedCall is a generic remote procedure call that runtime code can register to and that IDE extensions can call.
For example a fieldbus extension can use ExtendedCall to browse the fieldbus devices connected to the runtime.

#!/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