[Feature Request] Ability to apply color profiles to an ImageBuffer/DynamicImage

[oceanlewis]

I would like to be able to apply an .icc color profile to an ImageBuffer

My specific use case for this functionality is to enable converting an image to CMYK colorspace for printing.

This is more generally applicable to printed documents.

Draft

let cmyk_profile = include_bytes!("../GRACoL 2013 CRPC6.icc");
let mut my_image = DynamicImage::ImageRgb8(...);
my_image.apply_color_profile(cmyk_profile);

[fintelia]

This is related to #786. I'd like to have proper color space support, but there are a bunch of other higher priority items for the crate so it probably won't be coming any time soon (unless you or someone else want to try implementing it!)