[TS] Allows object API to set 0 for a null-default scalar. #5569

Job	Run time
Build Linux (g++-10)	3m 20s
Build Linux (clang++-12)	2m 50s
Build Linux with -DFLATBUFFERS_NO_FILE_TESTS	2m 47s
Build Linux C++ (11, g++-10)	2m 59s
Build Linux C++ (11, clang++-12)	3m 30s
Build Linux C++ (14, g++-10)	3m 11s
Build Linux C++ (14, clang++-12)	4m 6s
Build Linux C++ (17, g++-10)	4m 3s
Build Linux C++ (17, clang++-12)	3m 21s
Build Linux C++ (20, g++-10)	4m 7s
Build Linux C++ (20, clang++-12)	3m 46s
Build Linux C++ (23, clang++-12)	3m 37s
Build Linux with out-of-source build location	1m 47s
Build Windows C++ (11)	7m 5s
Build Windows C++ (14)	5m 59s
Build Windows C++ (17)	6m 3s
Build Windows C++ (20)	9m 18s
Build Windows C++ (23)	8m 4s
Build .NET Windows	1m 28s
Build .NET Windows (-p:UnsafeByteBuffer=true)	59s
Build Android (on Linux)	5m 20s
Check Generated Code (g++-10)	1m 40s
Check Generated Code (clang++-12)	1m 47s
Check Generated Code on Windows	6m 18s
Build Mac (universal build)	6m 39s
Build Mac (for Intel)	3m 14s
Build Windows 2019	6m 5s
Build Windows 2015	5m 34s
Build Windows 2017	5m 11s
Build Benchmarks (on Linux) (g++-10)	4m 16s
Build Dart	2m 6s
Build Go	2m 37s
Build Java	25s
Build Kotlin Linux	4m 11s
Build Kotlin MacOS	6m 18s
Build Nim	2m 11s
Build PHP	2m 16s
Build Python	2m 15s
Build Rust Linux	2m 50s
Build Rust Windows	3m 43s
Build Swift Wasm	1m 46s
Build Swift	2m 24s
Build TS	2m 34s
release-digests	0s
provenance	0s
	2h 44m 0s

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