Add a QA sub

[Tyil]

This sub would run various quality assurance checks on a module source to report what a module could use to improve its release. See Release::Checklist for some prior art. Some things to check for include:

• Good module name (first-level namespaces are generally bad)
• Tests
  • Are there tests
  • Do the tests succeed
• Does installation of the module succeed
• Documentation
  • A README with
    • Synopsis
    • Examples
    • Copyright information
  • A correct META6.json
    • Presence of some optional but useful fields
    • No unused dependencies
    • Dependency version adverbs
    • Version using a SemVer capable approach
      (I understand not everyone is a huge fan of it as I am, but I've yet to find a better versioning scheme, and assixt can be a little opinionated on its QA. If there are better schemes out there, I'd like to hear, though.)
  • POD blocks for each sub and argument
• Clean tree
  • Use version control to check for lingering files
• Tree meta files
  • Check for a CHANGELOG
  • Check for a LICENSE