Changed TRendererFlip to cint
added consts
    SDL_FLIP_NONE*: cint = 0x00000000 # Do not flip
    SDL_FLIP_HORIZONTAL*: cint = 0x00000001 # flip horizontally
    SDL_FLIP_VERTICAL*: cint = 0x00000002 # flip vertically
    SDL_FLIP_BOTH*: cint = SDL_FLIP_HORIZONTAL or SDL_FLIP_VERTICAL