Request: JNA-only and JNI-only published separately

[jasonsparc]

I know nothing about the underlying implementation (so feel free to correct my misinterpretation) but a quick glance tells me that there's both a JNA-only and JNI-only implementation, and that the user may freely choose between the two, but only one should be used at runtime.

If so, I believe it would be better if there are separate packages published that users could depend on: one for JNA-only, one for JNI-only, and one for both. Right now, the jar artifact contains both, so for example, even though I'm using only the JNA implementation, I also have the JNI binaries unnecessarily included and thus unused.

I'm using Gradle to include this library as a dependency, and there may be a way to transform the jar artifact, but it seems complicated to do so. It would really be great if the JNA and JNI implementations are available as separate modules.