Add JNI config for native image

[luneo7]

Adds JNI config for native image, with that we are able to use the lib and compile to native image with GraalVM.
The META-INF native-image folder/files follows the docs. All the classes accessed through JNI needs to be there, and methods as well, all existing methods are supported in native image with this new jni-config.json file added.

Fixes #55

[luneo7]

/cc @isaacbrodsky

[luneo7]

/cc @dfellis

[luneo7]

Going to add the include resources as well, as we need to include the native libs, just a sec...

[luneo7]

Added resource configuration as well, now it loads the lib correclty =)

[coveralls]

Pull Request Test Coverage Report for Build #435

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 98.817%

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Totals
Change from base Build #432:	0.0%
Covered Lines:	501
Relevant Lines:	507

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💛 - Coveralls

[luneo7]

Native image needs the jni config and the resource config, as it needs to load the lib and without the resource config it wouldn't find the native lib. Thanks @isaacbrodsky @dfellis for the prompt reviews =)

[luneo7]

@dfellis @isaacbrodsky can you trigger the test again please? it failed pulling a docker image

[isaacbrodsky]

It would be nice if we could test that this json definition is correct, perhaps by running GraalVM or something that consumes it in CI?

[luneo7]

@isaacbrodsky I will open a PR with native image tests, and hopefully you can do a release after validating that native and everything is working? (found out that we need to tweak the resources file)