Disable ANSI colored output if NO_COLOR is set

[SimpelMe]

Regardless of it's value.

But in addition enable color if STROBS_COLOR is set.
If NO_COLOR is set globally setting STROBS_COLOR=true (or anything else) will make color usable in strobs but not other programs.

[SimpelMe]

See https://no-color.org

[SimpelMe]

Maybe option -c will set color too, regardless of NO_COLOR, or can be set true/false?