Color management: color mapping functions.

This MR depends on !637 (merged)

1. Adds a color mapping function 3DLUT and pre-curve for gl-renderer.

2. CM is enable

3. Append light linearizing transfer function at the end of transform for blending category

4. Shaper-matrix test creates ICC profile based on chromaticities using LCMS in the fixture setup function.

   sRGB -> sRGB
   sRGB -> adobe RGB
   sRGB -> BT2020

   Compare GPU shaders(gl texture3D) vs manual pipeline calculation.

   Use different max tolerable errors per transform.

5. The Weston CM GL pipeline is as follows:

   • Fragment shader A: CMLCMS_CATEGORY_INPUT_TO_BLEND (non linear input) 3DLUT -> blending ( linear)
   • Fragment shader B: CMLCMS_CATEGORY_BLEND_TO_OUTPUT (linear input) INV EOTF -> surface to KMS ( non linear output)
   • Fragment shader AB: CMLCMS_CATEGORY_INPUT_TO_OUTPUT (non linear input) 3DLUT -> surface to KMS (non linear output)