lib,src,test,doc: add node:ffi module #5095

Job	Run time
Build slim tarball	2m 2s
aarch64-linux: with shared libraries	1h 24m 22s
x86_64-linux: with shared libraries	1h 57m 1s
x86_64-darwin: with shared libraries	2h 20m 1s
aarch64-darwin: with shared libraries	1h 44m 16s
	7h 27m 42s

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