Add a way to inspect QC internal loggings. This is basically
useful for inspecting issues while running QC and facing them
without the need to restart and set appropriate logging rules.
Change-Id: Ic647ba1abfb2611c4e4e99a375413d399c71886d
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
