Merge topic 'orangec-compiler'

f8fa4f1ad7 ci: Add OrangeC 6.73.1 nightly CI job
531b4fe643 OrangeC: Add support for OrangeC compiler
10f435a58f Tests: Simplify nested if conditions in Complex tests

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Acked-by: Victor <lostfreeman@gmail.com>
Merge-request: !8592