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addPerson add  siblings (add relation improve)

findRelative

findRelation - extend

Draw distinct regions of a tree
Draw spouses' relatives if main has none?

Zooming

Visualization:
- draw parents of focused
- horizontal navigation between cousins
- color on different consoles
- screen resize

Compilation
- static and dynamic ncurses

?
- same person can be displayed twice
- coordinate types for large trees

Backend
- move to SQLlite
- create tree backup

Refactoring
- check if vector combine && works correctly
- nobody = 0
- comment style /*