* Initial pass at factoring out C++ configuration into a single file.
* Expose config through Python.
* Forward declarations.
* Fixes with Python extensions
* Remove old code.
* Consistent naming for constants.
* Fixes
* Fix linting.
* More linting.
* Whitespace
* rename config -> _config.
* Move config inside a class.
* update naming convention
* Fix linting.
* More linting
* More linting.
* Add in some more constants.
* Fix linting
