Add a screenshot capturing button to the visualization project.

.../amapvox/visualization/controllers/ToolbarController.java

...a/fr/amap/lidar/amapvox/visualization/views/MainView.java

...r/amap/lidar/amapvox/visualization/views/ToolbarView.java

...a/fr/amap/lidar/amapvox/visualization/views/ViewView.java

...lidar/amapvox/visualization/views/VisualizationScene.java

.../AMAPVoxVisualization/src/main/resources/icons/export.png

...ox/AMAPVoxVisualization/src/main/resources/icons/open.png

...MAPVoxVisualization/src/main/resources/icons/viewXneg.png

...MAPVoxVisualization/src/main/resources/icons/viewXpos.png

...MAPVoxVisualization/src/main/resources/icons/viewYneg.png

...MAPVoxVisualization/src/main/resources/icons/viewYpos.png

...MAPVoxVisualization/src/main/resources/icons/viewZneg.png

...MAPVoxVisualization/src/main/resources/icons/viewZpos.png

...zation/src/main/resources/locales/interface_de.properties

...zation/src/main/resources/locales/interface_en.properties

...zation/src/main/resources/locales/interface_es.properties

...zation/src/main/resources/locales/interface_fr.properties

...zation/src/main/resources/locales/interface_it.properties

...zation/src/main/resources/locales/interface_zh.properties

...java/fr/amap/lidar/amapvox/engine3d/views/Listener3D.java