lib,src,test,doc: add node:ffi module #4991

Job	Run time
Build slim tarball	3m 9s
aarch64-darwin: with shared libraries	2h 9m 37s
x86_64-linux: with shared libraries	1h 58m 49s
aarch64-linux: with shared libraries	1h 25m 13s
x86_64-darwin: with shared libraries	2h 54m 11s
	8h 30m 59s

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