Revert "And restore the normal angle..."

This reverts commit 47a499ef50e5a73e7fae911fb6167b76e3ffafe0.
Revert "Fix floating point errors with camera movement in FOV code"

This reverts commit e83dbd12a0929454c40e8eaf7369cf3c487fb49c.
Revert "Implemented basic Field of View functionality, default angle 45 degrees"

This reverts commit 62197514ea7647b4a0e192e9c6219d546b829738.

Conflicts:
	src/util/camera.h
kernel.cl: add depth testing (for multiple shapes)
Merge branch 'master' of https://github.com/gfokkema/RT-Raytracing