Replace chalk with kleur

[aarongoldenthal]

This PR replaces chalk with kleur (#109), chosen for consistency with pa11y-reporter-cli. It also leverages pa11y-reporter-cli for detailed scan result output, which eliminates a significant amount of formatting code, and makes the console output consistent with pa11y (#64).

Two additional notes:

• This PR also fixes the version property in package-lock.json (whichnpm caught when changing dependencies)
• wordwrap was removed since the applicable output is now all generated with pa11y-reporter-cli, but it does not wrap

[josebolos]

Released as part of v3.0.0, thanks for the PR @aarongoldenthal!