sdm: Add hwc color managing support

Adds Color managing class to support QDCM color managing functionalities.
Any Android OS/HWC specific logic will be hosted in HWCColorManager object
before the display APIs further gets routed to SDM core,
where OS agnostic behaviour is maintained.

Change-Id: Ib1385634c8da24aed5c7d0fb0e9060d806fcb2b2
9 files changed