Redefine M_PI constans
Resolved problem with bounding box displaying
Added Material structure
repiared really big bug (it can be bug in the future also
Reverting object angle (not really sure is it correct)
Extend collision parameters
CollisionDetector extended for register collisionables
TransformationType added (enumeration for recognizing type of transformation)
Added last transformation and type of it
Changed detection of collision
Added checking collision during transformations
added light and collisions