* 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

maybe some bugs has been introduced in process