cue-api-java: use CUE from Java

This is a work in progress, expect constant churn and breakage.

Prerequisites

Java 22 is required for build, libcue is required at runtime.

Building

Run mvn build. Currently, the path to libcue is hardcoded in pom.xml, you might need to change that.

Using

TODO.

Known Limitations

The libcue bindings are pregenerated for macOS/arm64, other systems are unlikely to work.

Issue tracking

Please raise all issues in the main CUE repository, giving the title of the issue a cue-api-java: prefix.