Implement adding vertices and creating new graphs; remove robot pose from graph aron

...gation/components/GraphImportExport/GraphImportExport.cpp

source/armarx/navigation/graph/Graph.cpp

source/armarx/navigation/graph/Graph.h

source/armarx/navigation/graph/aron/Graph.xml

...navigation/gui-plugins/LocationGraphEditor/CMakeLists.txt

...-plugins/LocationGraphEditor/LocationGraphEditorWidget.ui

...cationGraphEditor/LocationGraphEditorWidgetController.cpp

...LocationGraphEditor/LocationGraphEditorWidgetController.h

...i-plugins/LocationGraphEditor/widgets/EdgeTableWidget.cpp

...plugins/LocationGraphEditor/widgets/NewEntityIdDialog.cpp

...i-plugins/LocationGraphEditor/widgets/NewEntityIdDialog.h

...plugins/LocationGraphEditor/widgets/VertexTableWidget.cpp

...i-plugins/LocationGraphEditor/widgets/VertexTableWidget.h

...igation/gui-plugins/LocationGraphEditor/widgets/utils.cpp

...avigation/gui-plugins/LocationGraphEditor/widgets/utils.h