start working on tui
start with tui menu
Main Menu half finished
start with code doku
add method doku finished
correct println method
start with next menu 'show user'
Merge branch 'master' of https://github.com/marsteff/Benutzerverwaltung into tui
Merge branch 'db' of https://github.com/marsteff/Benutzerverwaltung into tui
add Concept Factory and IConcept
adjust tui to IConcept