Light Bartlein Color Maps

Generates one of four colormaps using schemes proposed in technical literature

This submission was inspired by comments from Ned Gulley in a recent Blog by Doug Hull. Ned cited an EOS article by A. Light and P.J. Bartlein who proposed some color maps designed for colorblind viewers. This function implements four of the proposed color maps using look-up tables (aka interpolation). A link to the article is included in the M-file.