feat(logger): add FORCE_COLOR environment variable support

[automation-stack]

Motivation

• We now all use CI-solutions and many of them supports terminal colors in browser (logs, web-terminal and others)
• All CI processes are no-tty and can't pass check isatty.IsTerminal (fatih/color forces nocolor for all CI jobs with condition !isatty.IsTerminal(os.Stdout.Fd()))
• CI jobs without colored logs extremely inconvenient for debugging and evaluating results

Now, we can force colored output with FORCE_COLOR environment variable and ignore all shortsighted restrictions and efficiently use the awesome go-task/task in CI jobs.

Why PR suggested to go-task/task?

Maintainer of fatih/color rejected PR with FORCE_COLOR support with unconvincing arguments

[automation-stack]

@andreynering

Also, can you add an entry to the CHANGELOG and the API page on the documentation?

Done.

[andreynering]

Thanks @automation-stack!