[Android] Update HostPlatformColor to support color longs

[ryanlntn]

Summary:

This adds support for color longs to HostPlatformColor per the wide gamut color RFC.

Changelog:

[ANDROID] [ADDED] - Update HostPlatformColor to support color longs

Test Plan:

This requires changes from https://github.com/facebook/react-native/pull/43030 to build and will only break text color until those components are updated to support color long values as well. Will update with a link to that PR soon.

[facebook-github-bot]

@cipolleschi has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[NickGerleman]

Could we document what the magic numbers are doing? Maybe pull them out into constants?

[ryanlntn]

Could we document what the magic numbers are doing? Maybe pull them out into constants?

@NickGerleman I pulled out the color space and component ratios definitions into constants. Should I do similar with the bit masks/shifts? I can't decide what's more readable.

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	19,394,073	+32
android	hermes	armeabi-v7a	n/a	--
android	hermes	x86	n/a	--
android	hermes	x86_64	n/a	--
android	jsc	arm64-v8a	22,767,695	+13
android	jsc	armeabi-v7a	n/a	--
android	jsc	x86	n/a	--
android	jsc	x86_64	n/a	--

Base commit: fe9942a19d65d30c1127af207cf7777465cb257e Branch: main

[NickGerleman]

The shifts seem reasonably readable to me

[facebook-github-bot]

@cipolleschi has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.