Change the behavior of the catching the boost log output. With this
change boost will output it's logging to stdour with HRF format and to
the tempfile in XML format. This will help for easier debuggint when all
messages will be in the output file and still in the fail summary.
Implement repetition of files using pytest_collect_file hook: run
file collection as many times as needed to cover all --mode/--repeat
combinations. Also move disabled test logic to this hook.
Store build mode and run_id in pytest item stashes.
Simplify support of C++ tests: remove redundant facade abstraction and put
all code into 3 files: base.py, boost.py, and unit.py
Add support for `run_first` option in test_config.yaml
