Phong BRDF Implemented
Merge branch 'RayTracer' into BRDF
Commit après test problème raytracer
Merge branch 'RayTracer' of https://github.com/atipoul/TheBeatGoesOn into RayTracer

Conflicts:
	Ray.cpp
	RayTracer.cpp
Interpolation dans BRDF
Correction of the BRDF algo and simplification of the code
Prise en compte de toutes les lights dans la brdf
bug fixed
merge
antialiasing a 4 rayons
Param. AA
Bug correction
bug fixed
Creating functions blocs for Intersection
Bug fixed on RayTracer
Shadows included
Supression of comments
Area Lighting
un peu de miroir
Prise en compte de la brdf dans miroir