Create separate mavenCentral configuration
Create separate mavenCentral configuration

This creates a separate 'mavenCentral' configuration for archives needed for Maven Central, so '.archives' just contains the binary JARs.

linjunleo/lenskit,chrysalag/lenskit,vaibhav345/lenskit,blankazucenalg/lenskit,tajinder-txstate/lenskit,vaibhav345/lenskit,vaibhav345/lenskit,kluver/lenskit,amaliujia/lenskit,aglne/lenskit,binweiwu/lenskit,martinlaz/lenskit,kluver/lenskit,binweiwu/lenskit,kluver/lenskit,vijayvani/Lenskit,amaliujia/lenskit,vijayvani/Lenskit,aglne/lenskit,tajinder-txstate/lenskit,linjunleo/lenskit,kluver/lenskit,blankazucenalg/lenskit,tajinder-txstate/lenskit,martinlaz/lenskit,chrysalag/lenskit,tajinder-txstate/lenskit,vaibhav345/lenskit,kluver/lenskit