os: Regenerate os/oscolor.c from app/rgb #52289

Regenerate os/oscolor.c from rgb.txt. This adds the following
colors: aqua, lime, fuchsia, crimson, indigo, olive, rebecca
purple, silver and teal. It also adds versions of gray, grey,
green, maroon and purple prefixed with web and x11 for the
colors that are different between X11 and HTML/CSS web colors.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=52289
Related: https://bugs.freedesktop.org/show_bug.cgi?id=80371



Signed-off-by: nobody
Tested-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>