* improved layout, fixed naming
* connected functions to value changes inside the table

* hopefully did not forget about any instance - we will see..

* Add line now adds line with (Vals+1) compared to upper line

* solves the annoying default button Qt5 feature

* better input sanitization will be needed someday in future

* improved code readability

* Undecided where to keep pushbuttons
* Added verification that mass does not end-up empty

* Revision towards JR wishes

* Add parent code still remains ugly, but it works slightly better
* Daugher table needs desition about its form now.

* still preliminary - code is messy there

created function for construction of the tables.

further modification will be needed in future.

already working layout but pretty dirty coding behind..
clickbuttons not operational