feat: Add manual object renderer for debugging in dungeon editor

- Introduced ManualObjectRenderer class to facilitate manual rendering of dungeon objects for debugging purposes.
- Integrated manual renderer initialization in DungeonEditorV2, allowing for testing and debugging of object rendering.
- Added methods for rendering simple blocks, test patterns, and debugging graphics sheets.
- Updated dungeon_editor_v2.cc and dungeon_editor_v2.h to include the new manual renderer functionality.

src/app/editor/editor_library.cmake

@@ -43,6 +43,7 @@ set(
   app/editor/system/popup_manager.cc
   app/editor/system/proposal_drawer.cc
   app/editor/agent/agent_chat_history_codec.cc
+  app/editor/dungeon/manual_object_renderer.cc
 )
 
 if(YAZE_WITH_GRPC)