Added various classes, got the Request class to a good point. I think it's done.
Changed Maverick\DI namespace to Maverick\DependencyManagement
A bit more progress.. Added more to the request class, added a map class and more to the router.
- Updated the composer.json with the path to Maverick.
- Renamed the Maverick\Data namespace to Maverick\DataStructure
- Updated the classes Request and ReadOnlyMap with the following changes (also updated tests for the following changes)
    - Request not uses maps for headers, env vars, get data and post data
    - ReadOnlyMap not handles setting its own data via its constructor
Added a router
Added much of the functionality to the three core classes.
Added quite a bit... Still working..