added blender scene
small change to triangleTest parameters
Merge branch 'master' of https://github.com/thijser/Computer-Graphics-raytracing into feature-triagle_collision

Conflicts:
	a.out
Intersectable abstract class
Merge branch 'master' of github.com:thijser/Computer-Graphics-raytracing
Stub of triangle intersect
Merge branch 'refs/heads/master' into feature-triagle_collision
Commented out faulty line