node-api: add napi_set_prototype #2006

Job	Run time
Build slim tarball	1m 34s
aarch64-darwin: with shared libraries	26m 22s
x86_64-linux: with shared libraries	35m 15s
x86_64-darwin: with shared libraries	45m 26s
aarch64-linux: with shared libraries	28m 14s
	2h 16m 51s

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