STRData lib to modify map outside of LibreStr
	modified:   CMakeLists.txt
	modified:   LibreSTR/CMakeLists.txt
	modified:   LibreSTR/GameMap.cpp
	modified:   LibreSTR/GameMap.h
	modified:   LibreSTR/MainMenu.cpp
	new file:   LibreSTR/NewGameMenu.cpp
	new file:   LibreSTR/NewGameMenu.h
	new file:   STRData/CMakeLists.txt
	new file:   STRData/MapData.cpp
	new file:   STRData/MapData.h