superbench logging: 'color' output should be optional about superbenchmark

[abuccts]

• For logs directly written to file (sb-run.log, sb-exec.log), there's no color by default
• For logs written to stdout/stderr, you can disable it with ANSIBLE_NOCOLOR=1 and NO_COLOR=1

[LiweiPeng]

where to set these env variables? When I set them on the console like below. the output still has colors

export ANSIBLE_NOCOLOR=1
export NO_COLOR=1
sb run -f local.ini -c debug/run1.yaml

[abuccts]

did you try with the latest release/0.6 branch? will need to pull the code and rerun python3 -m pip install . on management node

[LiweiPeng]

fixed with latest PR.