Added support to move lights
Get and set for all light properties.
Normalize direction for lights.
Sort group boxes and signals to edit lights.
Merge remote-tracking branch 'origin/master' into Design

Conflicts:
	Common/Source/EventData.h
	ToolKit/Source/MainWindow.cpp
	ToolKit/Source/MainWindow.h
	ToolKit/Source/MyDX11Widget.cpp
	ToolKit/Source/MyDX11Widget.h
	ToolKit/Source/ObjectManager.cpp
	ToolKit/Source/ObjectManager.h
Fixed merge conflicts. Added support for negative direction for directional light.