[librender] NodeGraph and NodeEditor : Make loading/adapting and editing automatic

src/Mara/RadiumPlayer.cpp

src/libRender/CMakeLists.txt

...ibRender/RadiumNBR/Gui/NodeEditor/examples/CMakeLists.txt

...eEditor/examples/rendergraph/AccessibilityBufferModel.cpp

...eEditor/examples/rendergraph/AccessibilityBufferModel.hpp

...umNBR/Gui/NodeEditor/examples/rendergraph/BooleanData.hpp

...iumNBR/Gui/NodeEditor/examples/rendergraph/CMakeLists.txt

...iumNBR/Gui/NodeEditor/examples/rendergraph/CameraData.hpp

...umNBR/Gui/NodeEditor/examples/rendergraph/CameraModel.cpp

...umNBR/Gui/NodeEditor/examples/rendergraph/CameraModel.hpp

...R/Gui/NodeEditor/examples/rendergraph/ClearColorModel.cpp

...R/Gui/NodeEditor/examples/rendergraph/ClearColorModel.hpp

...diumNBR/Gui/NodeEditor/examples/rendergraph/ColorData.hpp

...umNBR/Gui/NodeEditor/examples/rendergraph/ColorSlider.cpp

...umNBR/Gui/NodeEditor/examples/rendergraph/ColorSlider.hpp

...mNBR/Gui/NodeEditor/examples/rendergraph/DisplayModel.cpp

...mNBR/Gui/NodeEditor/examples/rendergraph/DisplayModel.hpp

...R/Gui/NodeEditor/examples/rendergraph/EmissivityModel.cpp

...R/Gui/NodeEditor/examples/rendergraph/EmissivityModel.hpp

...NBR/Gui/NodeEditor/examples/rendergraph/EnvLightModel.cpp