Add `NineSliceSprite` #6508

Job	Run time
Build only (Android)	7m 49s
Code Quality	1m 28s
Test (Windows, windows-latest, Debug, SingleThread)	5m 17s
Build only (iOS)	3m 35s
Test (Windows, windows-latest, Debug, MultiThreaded)	5m 15s
Test (macOS, macos-latest, Debug, SingleThread)	1m 41s
Test (macOS, macos-latest, Debug, MultiThreaded)	1m 18s
Test (Linux, ubuntu-latest, Debug, SingleThread)	1m 24s
Test (Linux, ubuntu-latest, Debug, MultiThreaded)	1m 25s
Test (Linux, ubuntu-latest, Release, SingleThread)	1m 31s
Test (Linux, ubuntu-latest, Release, MultiThreaded)	1m 27s
	32m 10s

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