STYLE: Replacing VertexListIteratorType by VertexListConstIteratorType

Code/Common/otbPolyLineParametricPathWithValue.h

Code/Common/otbPolygon.h

Code/Common/otbPolygon.txx

Code/FeatureExtraction/otbRemoveTortuousPathListFilter.h

Code/FeatureExtraction/otbSimplifyPathListFilter.h

Code/SpatialReasoning/otbPolygonToPolygonRCC8Calculator.h

Code/SpatialReasoning/otbPolygonToPolygonRCC8Calculator.txx

Code/Visu/otbImageViewerBase.h

Code/Visu/otbImageWidgetPolygonForm.h

Code/Visu/otbImageWidgetPolygonForm.txx

Code/Visu/otbImageWidgetPolylineForm.h

Code/Visu/otbImageWidgetPolylineForm.txx

Examples/IO/VectorDataIOExample.cxx