To do this the following restructuring is performed:
- Move decorations specific classes to darklaf-platform-decorations
- Move SystemInfo to darklaf-platform-base
- Move theme specification specific classes to darklaf-theme-spec
- Create new module darklaf-platform-preferences for the reporting related classes
Some modules explicitly export only to darklaf.core, because
they are implementation modules. To avoid compiler warnings
we stub the module definition.