Fix wrong property setting of Argon ToTCorrections in TRT_DriftFunctionTool
The properties ToTCorrectionsBarrelAr
and ToTCorrectionsEndcapAr
were wrongly setting the Xenon properties (the two sets of properties being set to identical values in python). This means on the other hand that the ToT corrections for Argon were left to their default null values.
This MR fixes the wrong property settings in C++ and adjust the python config to keep the output unchanged for now. A possible output changing fix will be discussed separately in https://its.cern.ch/jira/browse/ATLIDTRKCP-632