Idea: Support license type checks e.g. Error on non-commercial usage etc.

[CraigHutchinson]

It could be great to extend the functionality to allow to automatically detect and warn if a license is not permitted in the scope of the current project, be it commercial or otherwise.

There could be some sort of workflow :

1. User populates a list of allowed+disallow license types
2. On build warn when a type not listed is found
   • User may append the allowed or disallow list
   • User may add explicit exception for a project (May have other agreement)

Prerequisite feature would be #5 to detect the types of licenses used