title: maven report on licenses your project depends on
body: <p>I've got a big multi-module project, and I'd like to generate a report that shows all the licenses of all the things the project depends on.</p>
  
  <p>I looked at tattletale, but it doesn't seem to do the trick.  And I can easily find a plugin that will squirt a license into the top of each source file, but this exact thing is defying my googling.</p>