Add basic support for App Install Flow #83852

Job	Run time
Build framework (macos-release, -sdk macosx -configuration Release)	13m 6s
Build framework (macos-release, -sdk macosx -configuration Release)	13m 6s
Build framework (ios-release, -sdk iphoneos -configuration Release)	10m 27s
Build framework (ios-release, -sdk iphoneos -configuration Release)	10m 27s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	7m 40s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	7m 40s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	11m 17s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	11m 17s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	41m 11s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	27m 7s
Run framework tests (tsan, -enableThreadSanitizer YES)	26m 27s
Run framework tests (tsan, -enableThreadSanitizer YES)	26m 27s
Run framework tests (leaks, ENABLE_LEAK_DETECTION=1)	24m 17s
Run framework tests (leaks, ENABLE_LEAK_DETECTION=1)	24m 17s
	4h 14m 46s

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