Rang palette data under CC0 1.0 Universal

To the extent possible under law, Mohsen Tahmasebi Nasab has waived all
copyright and related or neighboring rights in the Rang palette names, color
values, descriptions, and ordering.

This dedication applies only to the palette data. The Python software remains
licensed under the MIT License in LICENSE.

The complete CC0 1.0 Universal legal code is available at:
https://creativecommons.org/publicdomain/zero/1.0/legalcode
