New port: graphics/pastel

Command-line tool to generate, analyze, convert
and manipulate colors. It supports many different
color formats and color spaces like RGB (sRGB),
HSL, CIELAB, CIELCh as well as ANSI 8-bit and
24-bit representations.

WWW: https://github.com/sharkdp/pastel

PR: 243115
Submitted by: Lewis Cook <vulcan@wired.sh>