adding base ray marcher shader
Merge branch 'daniel' of https://github.com/memo/VolumeRunner into memo
Merge branch 'daniel' of https://github.com/memo/VolumeRunner into memo
added floor
Merge branch 'daniel' of https://github.com/memo/VolumeRunner into memo-hf
adding floor dude checks
Merge branch 'memo' of https://github.com/memo/VolumeRunner into daniel

Conflicts:
	VolumeRunnerApp/src/ofApp.cpp