A bunch of improvements to recoverymap calculations.

* Add proper color space conversions for map generation
* Add proper luminance calculation for map generation
* Add PQ encode/decode support
* Add structs for handling JPEG/R metadata, including HDR10 stuff
* Fill in HDR10 metadata, except for ST2086 info
* Update decode output from P010 to RGBA 1010102
* Update "hdr ratio" to "range scaling factor"

Bug: 252835416
Test: builds
No-Typo-Check: incorrectly interpretting code as a comment
Change-Id: I67d7be6d2a7821108d5f7ed26dd65285684e80f4