working on new structure
complete rewrite
basic box model works again, but no drawing and no layouting
added UnitGroup
added FloatReadOnly
added necessary code to calculate box size
added layouter base
working on debug drawer
made debug drawer templated
debug draw can draw a rectangle now
working on basic layouter
bugfix, Point conversion
working on and testing of CRTP pattern
working on addressing system
working on addressing system, classes kind of work
added debug printing methods
addressing with classes, types and ids works
added styleable
working on styleable
added more debug draw classes