Added cividis, a new colormap mathematically optimized while consider…#2178

Merged

alexcjohnson merged 4 commits intoplotly:masterfrom

jamienunez:master

Nov 27, 2017

Commits on Nov 20, 2017

Added cividis, a new colormap mathematically optimized while considering those with a color vision deficiency
jamienunez
committed

Commits on Nov 22, 2017

Commits on Nov 27, 2017

lint cividis and add baseline image
alexcjohnson
committed