Parse raw box shadow props

[joevilches]

Summary: tsia, nothing too fancy here. Just taking the box shadows from raw props and throwing them into a struct so we can read it.

Reviewed By: NickGerleman

Differential Revision: D57617028

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57617028

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	20,249,250	-5
android	hermes	armeabi-v7a	n/a	--
android	hermes	x86	n/a	--
android	hermes	x86_64	n/a	--
android	jsc	arm64-v8a	23,454,749	+15
android	jsc	armeabi-v7a	n/a	--
android	jsc	x86	n/a	--
android	jsc	x86_64	n/a	--

Base commit: 53dda9e5426fe20c5b19193500965605036dc087 Branch: main

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D57617028

[facebook-github-bot]

This pull request has been merged in facebook/react-native@24d7cc15dbd04a1f25578a9ca889452f3acd9aab.

[github-actions[bot]]

This pull request was successfully merged by @joevilches in 24d7cc15dbd04a1f25578a9ca889452f3acd9aab.

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