Correct orientation of Game Saved clock in Flip Mode

The clock on the Game Saved quicksave screen has always been upside-down
in Flip Mode. And technically, the trinket was too, but this was
unnoticeable because the default trinket sprite is symmetrical.

To fix this, draw flipsprites.png if these sprites are being drawn in
Flip Mode instead of sprites.png.

desktop_version/src/Graphics.cpp

@@ -632,6 +632,11 @@ void Graphics::draw_sprite(const int x, const int y, const int t, const SDL_Colo
     draw_grid_tile(grphx.im_sprites, t, x, y, sprites_rect.w, sprites_rect.h, color);
 }
 
+void Graphics::draw_flipsprite(const int x, const int y, const int t, const SDL_Color color)
+{
+    draw_grid_tile(grphx.im_flipsprites, t, x, y, sprites_rect.w, sprites_rect.h, color);
+}
+
 void Graphics::scroll_texture(SDL_Texture* texture, SDL_Texture* temp, const int x, const int y)
 {
     SDL_Texture* target = SDL_GetRenderTarget(gameScreen.m_renderer);