Merge branch 'bug-7538-planarFigure-controlpoint-refactoring'
- bug-7538-planarFigure-controlpoint-refactoring: cleanup after refactoring adapting planarFigureInteractor to new points containers fixing crash when moving center control point adapting PlanarFourPointAngle to new point containers adapting PlanarRectangle to new point containers adding error-messages if womething went wrong with the indeces adapting PlanarArrow to new point containers adapting PlanarAngle to new point containers adapting tests to new point containers adapting PlanarFigureWriter to new point containers Adapting PlanarCirlce to new point containers adapting PlanarPolygon to new point containers clearing contaienrs before recreating polylines finalized refactoring of planarFigures & the control point containers adapted classes to new datatypes used in planarFigures adapted PlanarFigureMapper and Interactor to new datatypes adapted subclasses of planarfigure to new datatypes extended refactoring of datatypes used in planarFigures started refactoring of controlpoints in PlanarFigure