Add support for CI envs in colour support check

[kibertoad]

fixes #61

[jorgebucaran]

Can we do without the destructuring assignment (I know it's a bit strange, but we technically still support pre Node 6) and format the expression to this:

const env = process.env

const isDisabled = "NO_COLOR" in env
const isForced = "FORCE_COLOR" in env
const isWindows = process.platform === "win32"

const isCompatibleTerminal =
  process.stdout != null &&
  process.stdout.isTTY &&
  env.TERM &&
  env.TERM !== "dumb"

  const isCI =
  "CI" in env &&
  ("GITHUB_ACTIONS" in env || "GITLAB_CI" in env || "CIRCLECI" in env)

let enabled =
  !isDisabled && (isForced || isWindows || isCompatibleTerminal || isCI)

[kibertoad]

Done!

[jorgebucaran]

Thank you!

[jorgebucaran]

@kibertoad Just checking, but does it make sense to automatically enable color inside a CI? I thought we'd want to disable it instead. Maybe I'm having a time-lapse.

[kibertoad]

@jorgebucaran It makes reading logs in CI console easier, and also this is a default behaviour for support-colours, so I would say that this is what the majority of users are actually expecting.

[jorgebucaran]

Gotcha. 👍