User must be able to set which module generates archive

[lordofthejars]

Issue Overview

User must be able to set which module generates an archive, in multimodule projects, several artifacts are generated so the default one might be not the one you might want to use as deployment.

Expected Behaviour

Create an attribute at MavenBuild annotation called module which allows you to set the module in the form of "a/b/c" but always this is relative to the defined pom (usually root)

Current Behaviour

Cannot be set the module and root artifact is used.