Add option to control ANSI color codes

[shadycuz]

I cant figure out how to disable terminal colors? I get this in Jenkins:

�[1m�[31m#�[1m�[38;2;86;156;214m13�[39m�[22m naming to docker.io/library/vsc-devcontainer-example-c17e9ad94bc542f72c1906e018d524aa 0.0s done�[39m�[22m
�[1m�[31m#�[1m�[38;2;86;156;214m13�[39m�[22m DONE 0.1s�[39m�[22m
�[1m�[31m�[39m�[22m
�[1m�[31m#�[1m�[38;2;86;156;214m14�[39m�[22m exporting cache�[39m�[22m
�[1m�[31m#�[1m�[38;2;86;156;214m14�[39m�[22m preparing build cache for export done�[39m�[22m
�[1m�[31m#�[1m�[38;2;86;156;214m14�[39m�[22m DONE 0.0s�[39m�[22m
�[1m�[31m�[39m�[22m
[�[1m�[38;2;99;143;79m414703 ms�[39m�[22m] Start: Run: docker run --sig-proxy=false -a STDOUT -a STDERR --mount 

[shadycuz]

@chrmarti Was this released in version 0.23.2? I'm still having the issue. It would be nice to have a flag or environment variable to control color output.

[chrmarti]

I only now released this with 0.24.0. Let me know if that fixes it for you. Thanks.

[Tyriar]

I don't know how to verify, but the diff looks good.