🆕Feature request: support binding with Python functions

[gertjandemulder]

Objective: the function handler is able to execute Python implementation. Similar to the JavaScriptHandler.

Pointer:

• https://stackoverflow.com/questions/30689526/how-to-call-python-script-from-nodejs

Thoughts, @bjdmeest ?

[bjdmeest]

Well, sure, but then I'd make it a bit more generic and make a 'commandline handler', so you support python/java/... etc