Add Plug-in To Validate Generated POM Meets Maven Central Requirements

[romeara]

Often during the first release of a project, publication goes smoothly until an attempt is made to deploy artifacts to Maven Central - at which point, it is revealed something simple (such as project description) is missing from the POM file, failing the deploy.

It would be helpful to automate a simple check, either as a test or a finalizer to the POM-generating task, that checks the generated POM against the minimum maven central requirements