Add support for NO_COLOR environment variable

## Search Terms
Color escapes

## Problem
Today, TypeDoc includes ANSI colors for colorizing output. Most of the time, this is fine, but some tools don't handle it well.

## Suggested Solution
Check for NO_COLOR and don't output color codes if it is set - https://no-color.org/
tsc is adding support for NO_COLOR in an upcoming release, we should support it too.
