Time to recreate the core module. Tasks are as follows:

1) The module folder, with plugins / features / test category
2) an (empty) test plugin
3) an empty core plugin
4) an empty ui plugin
5) a feature
6) properly added into build
7) properly added to build download page
8) properly added to update site

The purpose of this module will be to hold common well-designed multi-functional classes that will be usable by others. This will help reduce dependencies between modules by providing a common base.