Which will have proper API to deal with an image's color profile (no
parasites, no ICC blobs). So far contains gimp_image_get_color_profile()
and gimp_image_set_color_profile().
Which contains all the API from the "color" group, but with a
gimp_drawable namespace and with support for high bit depths. The
group is actually a copy of "color" with cruft removed and some API
ported to using float instead of integer API.
Deprecated all "color" functions that already have a ported version in
"drawable_color".
This is unfinished WIP, some functions in "drawable_color" still have
the old API.
