WAMP runtime : changes from dporopat and agregorcic, adding CRA (-s) and changed way to load WAMP conf (-c)
- added Challenge Response Authentication,
- use -s commandline switch to give the shared secret.
- WAMP configuration now either given as -c commandline switch
or taken as default wampconf.json in project files.

<?xml version='1.0' encoding='utf-8'?>
<BaseParams xmlns:xsd="http://www.w3.org/2001/XMLSchema" IEC_Channel="0" Name="py_ext_0"/>