Add target for exporting shareshuffle library as a Maven artifact.

[SanjayVas]

No description provided.

[wfa-reviewable]

This change is 

[SanjayVas]

Depends on world-federation-of-advertisers/common-jvm#258

[kungfucraig]

Thank you for doing this!

Reviewed 4 of 4 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @SanjayVas)

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src/main/kotlin/org/wfanet/measurement/eventdataprovider/shareshuffle/v2alpha/FulfillRequisitionRequestBuilder.kt line 168 at r1 (raw file):

    }

    private fun loadNativeLibrary() {

nit: Inline this in the init block or leave a TODO to move it to common JVM?

[SanjayVas]

Reviewable status: 1 of 8 files reviewed, all discussions resolved (waiting on @kungfucraig)

a discussion (no related file):
I reworked this a bit to behave more like native TLS deps for grpc-java. There's a separate shareshuffle-native artifact that you can add as a runtime dependency. If it's found, the native library will be loaded from there. If not, it'll be loaded from your library path.

This gives a convenient way for anyone to use our prebuilt shared library if they desire. Otherwise they can compile it themselves (e.g. with a different libc) and include it in their library path.

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src/main/kotlin/org/wfanet/measurement/eventdataprovider/shareshuffle/v2alpha/FulfillRequisitionRequestBuilder.kt line 168 at r1 (raw file):

Previously, kungfucraig (Craig Wright) wrote…

nit: Inline this in the init block or leave a TODO to move it to common JVM?

This is extracted to a function rather than having a comment over a block of code. It's a common readability pattern.

[kungfucraig]

Reviewed 8 of 8 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @SanjayVas)

[SanjayVas]

Reviewable status: 6 of 8 files reviewed, all discussions resolved (waiting on @kungfucraig and @stevenwarejones)

a discussion (no related file):
Will follow up with a workflow to publish these artifacts on release.

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[stevenwarejones]

Reviewed 6 of 8 files at r2, 2 of 2 files at r3, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @kungfucraig)