Integrate performance monitoring across various editors

- Added performance monitoring capabilities using ScopedTimer in the DungeonEditor, PaletteEditor, ScreenEditor, MessageEditor, MusicEditor, SpriteEditor, and SettingsEditor classes to track loading times.
- Enhanced the Load methods in each editor to include timing for critical operations, improving performance analysis and optimization.
- Removed unnecessary debug output in the Sprite class to clean up the codebase.

src/app/zelda3/sprite/sprite.cc

@@ -869,7 +869,6 @@ void Sprite::DrawSpriteTile(int x, int y, int srcx, int srcy, int pal,
                             bool mirror_x, bool mirror_y, int sizex,
                             int sizey) {
   if (current_gfx_.empty()) {
-    std::cout << "No gfx loaded" << std::endl;
     return;
   }