Added core files
	new file:   SDLutility.cpp
	new file:   SDLutility.h
	new file:   Styles.cpp
	new file:   Styles.h
	new file:   collision.cpp
	new file:   collision.h
	new file:   datastruct.cpp
	new file:   datastruct.h
	new file:   font.cpp
	new file:   font.h
	new file:   helperfuncs.h
	new file:   interpreter.cpp
	new file:   interpreter.h
	new file:   keyhandler.cpp
	new file:   keyhandler.h
	new file:   loader.cpp
	new file:   loader.h
	new file:   main.cpp
	new file:   reference.cpp
	new file:   reference.h
	new file:   registry.cpp
	new file:   registry.h
	new file:   sprite.cpp
	new file:   sprite.h
	new file:   spritecontroller.cpp
	new file:   spritecontroller.h
	new file:   sprites.cfg
	new file:   state.cpp
	new file:   state.h
	new file:   timer.cpp
	new file:   timer.h
	new file:   window.cpp
	new file:   window.h