Add vangogh

[cgoo4]

Hi Emil - please could you add van gogh ?

[EmilHvitfeldt]

Hello @cgoo4 👋 I've marked it for next release

[EmilHvitfeldt]

https://github.com/cherylisabella/vangogh

• [x] Modify data-raw/palettes_d.R
• [x] Modify and Run data-raw/palettes_d_names.R script
• [x] run devtools::document()
• [x] Include license reference in LICENSE file.
• [x] Include package information in data-raw/packages and run.
• [x] reknit readme.
• [x] Include bullet in NEWS.md file.
• [x] run data-raw/palette_names.R
• [x] run testthat::snapshot_review('vdiffr_palette_check')