Ship both x86 and aarch64 darwin libs

[atoulme]

Signed-off-by: Antoine Toulme antoine@lunar-ocean.com

[shemnon]

Looks good for the most part.

Except that the Blake2F lib performs worse than the Java lib right now on mac. Performance is out of scope for this PR.

[garyschulte]

Are we not able to build a lipo/multi-arch darwin lib for blake2f in the same way we do for the other besu-native libs?

[atoulme]

jna now uses separate folders for darwin, so you can't use a multi-arch lib.
And blake2bf has some ever so slightly differences in imports between m1 and arm, and required a change in the code for imports. You can probably reconcile and use a precompile condition like ifdef __APPLE__. I picked that up a bit late.

[atoulme]

I have verified locally that the m1 lib for ipa-multipoint now loads properly with the zulu java 17 SDK.