refactor(gfx): reorganize graphics includes and introduce new types

- Updated include paths for various graphics-related headers to improve organization and clarity.
- Introduced new types for SNES color, palette, and tile management, enhancing the structure of the graphics subsystem.
- Refactored existing code to utilize the new types, ensuring consistency across the codebase.

Benefits:
- Improves maintainability and readability of the graphics code.
- Facilitates future enhancements and optimizations within the graphics subsystem.

test/integration/editor/tile16_editor_test.cc

@@ -6,10 +6,10 @@
 
 #include <gtest/gtest.h>
 #include "app/rom.h"
-#include "app/gfx/arena.h"
+#include "app/gfx/resource/arena.h"
 #include "app/gfx/backend/sdl2_renderer.h"
-#include "app/gfx/bitmap.h"
-#include "app/gfx/tilemap.h"
+#include "app/gfx/core/bitmap.h"
+#include "app/gfx/render/tilemap.h"
 #include "zelda3/overworld/overworld.h"
 #include "app/core/window.h"
 

test/integration/palette_manager_test.cc

@@ -1,9 +1,9 @@
-#include "app/gfx/palette_manager.h"
+#include "app/gfx/util/palette_manager.h"
 
 #include <gtest/gtest.h>
 
-#include "app/gfx/snes_color.h"
-#include "app/gfx/snes_palette.h"
+#include "app/gfx/types/snes_color.h"
+#include "app/gfx/types/snes_palette.h"
 #include "app/rom.h"
 
 namespace yaze {

test/integration/zelda3/dungeon_object_rendering_tests.cc

@@ -16,8 +16,8 @@
 #include <chrono>
 
 #include "app/rom.h"
-#include "app/gfx/snes_palette.h"
-#include "app/gfx/background_buffer.h"
+#include "app/gfx/types/snes_palette.h"
+#include "app/gfx/render/background_buffer.h"
 #include "testing.h"
 #include "test_utils.h"