Support loading bitmap fonts from an asset pack

include/BitmapFont.h

@@ -6,6 +6,7 @@
 #include "AssetManager.h"
 #include "Renderer.h"
 #include "SDL_pixels.h"
+#include "pak.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -15,7 +16,7 @@ typedef struct bitmap_font BitmapFont;
 
 BitmapFont *create_bitmap_font(AssetManager *am, const Renderer *renderer,
                                const char *filepath, u64 tile_width,
-                               u64 tile_height);
+                               u64 tile_height, asset_pack_t *pack);
 
 TextSize get_text_size_from_bitmap_font(BitmapFont *font, u64 font_size,
                                         const char *text);