Revert "Remove old ICC parser, A2B SkColorSpace, SkGammas, etc..."

This reverts commit 8ae7c90fafa2b2405d78d99a8524f07936858ff4.

Reason for revert: Chrome roll

Original change's description:
> Remove old ICC parser, A2B SkColorSpace, SkGammas, etc...
> 
> Docs-Preview: https://skia.org/?cl=148807
> Change-Id: I2d77f6543e390c4948d57242a518af77443f0165
> Reviewed-on: https://skia-review.googlesource.com/148807
> Commit-Queue: Mike Klein <mtklein@google.com>
> Reviewed-by: Mike Klein <mtklein@google.com>

TBR=mtklein@google.com,brianosman@google.com,reed@google.com

Change-Id: I5821591b22e395327ec0cd29ec18569bf7f61859
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/150142
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
12 files changed