Added expiremental ambient light
	modified:   Shader-120/texture.frag
	modified:   Shaders/texture.frag
	modified:   engine/Game.cpp
	new file:   engine/Light.cpp
	new file:   engine/Light.h
	modified:   engine/Makefile
	modified:   engine/Scene.cpp
	modified:   engine/Scene.h
	modified:   projet-freebsd