fixing dependency issue: moving location/aron/Location.xml to core library

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

...vigation/components/NavigationMemory/NavigationMemory.cpp

...ce/armarx/navigation/components/NavigationMemory/Visu.cpp

source/armarx/navigation/core/CMakeLists.txt

source/armarx/navigation/core/Graph.cpp

source/armarx/navigation/core/aron/Location.xml

...tion/gui-plugins/LocationGraphEditor/WidgetController.cpp

...gation/gui-plugins/LocationGraphEditor/WidgetController.h

source/armarx/navigation/location/CMakeLists.txt

source/armarx/navigation/memory/client/graph/Reader.cpp

source/armarx/navigation/memory/client/graph/Reader.h