[Tests] Incorrect python will not stop build execution anymore
requested to merge gh-fb89aea6/140/mensiatech/fix-thga-core-857-python-version-conflicts into master
Created by: tgaugry
New behavior is :
- if user specify an python exec, use that without checking
- if no py3 exec specified, try to find one; if this succeed, use that
- if none of the above is true, print an warning saying that the user should use the "--python-dir" option of ctest-launcher
Tracker Reference: CORE-857