tracie: Produce JUnit XML results

Write tracie results to the 'results/junit.xml' file using the JUnit XML
format. Among other uses, this file can be picked up by gitlab to
display more useful information to the user.

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6598>
2 files changed