Disappointing to learn that the new `jpackage` can...

# tornadofx

[darkmoon_uk]

Disappointing to learn that the new jpackage can only package for the host platform - it is quite limited vs its predecessor, javapackager.
Having true Mac and Windows hardware on standby just to perform the final packaging step in CI is not an attractive option; especially when the Badass Runtime plugin is already capable of creating a complete runtime image for any platform.