updated detector geometry and saved old geometry in .cc~ file
need to update particle generation
	modified:   include/NSDetectorConstruction.hh
	renamed:    src/~NSDetectorConstruction (copy).cc -> src/NSDetectorConstruction (copy).cc~
	modified:   src/NSDetectorConstruction.cc
	modified:   src/NSDetectorMessenger.cc
	new file:   src/NSPrimaryGeneratorAction.cc~