Colorblind Friendlier Palettes + Viridis' Inferno

[vincentott]

(see also: jasp-stats/jasp-desktop#5986)

The current colorblind and colorblind2 are not that colorblind friendly, as shown by the package
colorblindcheck::palette_plot()

colorblind:

colorblind2:

On the other hand, colorblind3 is better:

To add an alternative to colorblind3, I propose colorblind4:

Note that it is complementary to colorblind3 in the following way.
If only 2 colors are extracted, then colorblind3 will give black and pink, while colorblind4 will give green and black.
Depending on the use case and meaning of the data, this offers flexibilty that users might appreciate.

Finally, I also added inferno from the viridis family:

For an additional palette that works for continuous data (like viridis).