added saliency map visualization + gui plugin for ViewSelection

source/RobotAPI/components/ViewSelection/ViewSelection.cpp

source/RobotAPI/components/ViewSelection/ViewSelection.h

source/RobotAPI/gui-plugins/CMakeLists.txt

source/RobotAPI/gui-plugins/ViewSelection/CMakeLists.txt

...tAPI/gui-plugins/ViewSelection/ViewSelectionGuiPlugin.cpp

...botAPI/gui-plugins/ViewSelection/ViewSelectionGuiPlugin.h

...RobotAPI/gui-plugins/ViewSelection/ViewSelectionWidget.ui

...i-plugins/ViewSelection/ViewSelectionWidgetController.cpp

...gui-plugins/ViewSelection/ViewSelectionWidgetController.h

.../RobotAPI/interface/components/ViewSelectionInterface.ice