[clusters] Implemented ThreadDiagnosticDelegate #1315

Job	Run time
Build framework (macos-release, -sdk macosx -configuration Release)	10m 9s
Build framework (ios-release, -sdk iphoneos -configuration Release)	8m 26s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	7m 11s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	9m 52s
Build TV Casting Bridge example	10m 24s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	18m 59s
Run framework tests (asan-global-storage, -enableAddressSanitizer YES -enableUndefinedBehaviorSan...	18m 1s
Run framework tests (tsan, -enableThreadSanitizer YES)	20m 27s
	1h 43m 29s

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