Add SDL_Linked_Version.
Add SDL_Linked_Version.

caseyc37/pygame_cffi,caseyc37/pygame_cffi,CTPUG/pygame_cffi,CTPUG/pygame_cffi,GertBurger/pygame_cffi,caseyc37/pygame_cffi,GertBurger/pygame_cffi,CTPUG/pygame_cffi,GertBurger/pygame_cffi,GertBurger/pygame_cffi