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

echo "Building docker image"
cp -f ../../../requirements.txt requirements.txt
docker build \
    --build-arg UID=$(id -u) \
    --build-arg GID=$(id -g) \
    -t beremiz_sikuli .