Adding turbo colormap in presets
See https://ai.googleblog.com/2019/08/turbo-improved-rainbow-colormap-for.html
Colormap actually copied from https://gist.github.com/mikhailov-work/ee72ba4191942acecc03fe6da94fc73f
Fixes #20789 (closed)
Edited by Yohann Bearzi (Kitware)