Implement `requestIdleCallback` and `cancelIdleCallback`

[cipolleschi]

Summary: This last change finally implements requestIdleCallback and cancelIdleCallback, filling one of the gaps of the New Architecture

The implementation is completely in C++ so it should work the same way in Android and iOS.

Changelog:

[General][Added] - Implement requestIdleCallback and cancelIdleCallback

Differential Revision: D56477256

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D56477256

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D56477256

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	19,492,822	+32,777
android	hermes	armeabi-v7a	n/a	--
android	hermes	x86	n/a	--
android	hermes	x86_64	n/a	--
android	jsc	arm64-v8a	22,866,299	+32,781
android	jsc	armeabi-v7a	n/a	--
android	jsc	x86	n/a	--
android	jsc	x86_64	n/a	--

Base commit: 3db7ab6683b33c0bc28dfb73b199200e8bac4c68 Branch: main

[cipolleschi]

abandoned internally