Draft: started refactoring of classes
requested to merge 2029-simplification-of-system-compositesystem-puresubstance-base-sections into develop
I just started with cleaning the classes. @hnaesstroem @g-sarthakkapoor @himanel1
You can have a quick look at the classes already, they are pretty much refactored, but I need to go through the normalizers.
After my holidays starting in 2 days, I will check whether you have some comment on the classes and will fix it and go on with untangling all TODO knots I left concerning normalizers.
See you soon