Added workaround to use a central license server.
It's a workaround, because license servers are officially not supported by CODESYS, yet.
Updated to new runtime version. And expose TCP port.
support build-args CDS_VERSION and EDGE_VERSION to overload the default version of the Dockerfile
Start runtime and edge gateway in the same container.
This allows local scans via UDP, by connecting to the edge Gateway in the container
First working container, which is sadly based on SP15.
Actually I am not able to connect via TCP/IP on anything newer than SP15