New repo structure, misc fixes and commenting
Merge, add NFrame class, NPopup now using NFrame

Conflicts:
	Animation.cpp
	Animation.h
	NConstruct.cpp
	NConstruct.h
	NMenu.h
	NSettings.cpp
	NSettings.h
	NUtilChrono.h
	NUtilColor.h
	NUtilPopup.h
	NUtilSound.h
	NUtilWindow.h
	README.md