Merge pull request #9 from merlinND/renderer

Lighting & materials
Scene designed to test camera and coordinates system
Fix image buffer fill order
Fix camera view matrix computation
Adjustments
Add current render
Merge pull request #12 from merlinND/camera

Fix camera view matrix
Add Plane stub
Stubs for object positioning

Conflicts:
	src/geometry/Object.cpp
	src/geometry/Object.h
Update README.md
Add TODOs
Add TODOs
Merge branch 'master' into camera
Prepare handling intersections in object coordinates
Move rays to object space and back to world space

When there's a rotation only.
Intersection computation is now done in object space
Add current render example
Use smaller render size when testing
Merge pull request #14 from merlinND/camera

Object positioning
Merge branch 'master' into geometry