This CL implements the Ganesh path for the SkTable_ColorFilter color transformation.

A new texture stage dedicated to color transforms has been added, along with the new custom stage implementing the LUT.
Review URL: https://codereview.appspot.com/6351081

git-svn-id: http://skia.googlecode.com/svn/trunk@4663 2bbb7eff-a529-9590-31e7-b0007b416f81
9 files changed