Add tests to ccanlint and create a GUI wizard for it

by Joey Adams for Comprehensive C Archive Network

CCAN's focus this year is pretty straightforward: Improve ccanlint so it will be easy for users to submit high-quality CCAN modules. Thus, I propose bringing two key improvements to ccanlint: additional tests to ccanlint, and a ccanlint GUI. The tests will help eliminate errors in contributed libraries, their test suites, and in example code. The GUI will be a simple wizard to guide contributors through the steps of creating metadata and running the gauntlet of tests.