gitadora: prevent window resize (#529)

## Link to GitHub Issue, if one exists
n/a

## Description of change
Gitadora (pre-Delta) tends to soft lock, have graphical issues (menu bg
render as black), or take a long time (minutes) between scene
transitions when window is resized.

src/spice2x/hooks/graphics/graphics.h

@@ -102,4 +102,5 @@ void graphics_update_window_style(HWND hWnd);
 void graphics_update_z_order(HWND hWnd, bool always_on_top);
 void graphics_move_resize_window(HWND hWnd);
 bool graphics_window_change_crashes_game();
+bool graphics_window_resize_breaks_game();
 void graphics_load_windowed_subscreen_parameters();