intel/tools: rewrite run-test.sh in python

intel/tools: rewrite run-test.sh in python

Old script created files in the source directory, which is generally
considered bad form.

The rewrite to python instead of duct-taping around in the shell script
goes towards the goal of only having cross-platform python scripts,
which is also harder to make mistakes in than shell scripts.

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5155>