Function nih_plug_xtask::maybe_create_macos_bundle_metadata

pub fn maybe_create_macos_bundle_metadata(
    package: &str,
    display_name: &str,
    bundle_home: &Path,
    target: CompilationTarget,
    bundle_type: BundleType
) -> Result<()>

If compiling for macOS, create all of the bundl-y stuff Steinberg and Apple require you to have.

This still requires you to move the dylib file to {bundle_home}/Contents/macOS/{package} yourself first.