relocate implementiert
fixed move
fixed selectFigure
added delete functionality
enabled menue for selected Items (getSelectedFigureCount)
fixed move (again)
move and select prepared for groups
gouping and ungrouping implemented
copy and paste implemented
fixed selecting the shape at the top
changed move Figures to be based on selected items
implemented duplicate for Line and Ellipse
implemented changing the order of the shapes
added todo for ellipse
TODO: Comment all uncommented methods