Add support for C++ modules #463

Job	Run time
windows-msvc-shared (AVRO)	3m 56s
windows-msvc-shared (MSGPACK)	2m 12s
windows-msvc-shared (FLEXBUFFERS)	3m 48s
windows-msvc-shared (JSON)	2m 36s
windows-msvc-shared (CAPNPROTO)	4m 27s
windows-msvc-shared (CBOR)	2m 52s
windows-msvc-shared (XML)	2m 11s
windows-msvc-shared (PARQUET)	37m 8s
windows-msvc-shared (YAML)	2m 36s
windows-msvc-shared (TOML)	2m 29s
windows-msvc-shared (UBJSON)	3m 13s
windows-msvc (TOML)	2m 37s
windows-msvc (JSON)	2m 21s
windows-msvc (YAML)	2m 33s
windows-msvc (benchmarks)	17m 44s
windows-msvc (PARQUET)	17m 42s
windows-msvc (UBJSON)	2m 30s
windows-msvc (CBOR)	2m 21s
windows-msvc (FLEXBUFFERS)	3m 48s
windows-msvc (MSGPACK)	2m 9s
windows-msvc (AVRO)	4m 25s
windows-msvc (CAPNPROTO)	4m 18s
windows-msvc (XML)	2m 19s
	2h 12m 15s

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