Set SkColorSpace object for PNGs and parse ICC profiles

Code for ICC profile parsing adapted from:
https://codereview.chromium.org/1707033002/

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1726823002

Review URL: https://codereview.chromium.org/1726823002
10 files changed