Change: Display more useful information in sprite aligner than sprite ID. (#12439)

Sprite IDs are not useful information given they change don't refer to anything outside the loaded game.

Instead, include the filename and nfo line at minimum, and include action A or action 5 sprite replacement information if applicable.

src/spritecache.h

@@ -62,6 +62,7 @@ void GfxClearFontSpriteCache();
 void IncreaseSpriteLRU();
 
 SpriteFile &OpenCachedSpriteFile(const std::string &filename, Subdirectory subdir, bool palette_remap);
+std::span<const std::unique_ptr<SpriteFile>> GetCachedSpriteFiles();
 
 void ReadGRFSpriteOffsets(SpriteFile &file);
 size_t GetGRFSpriteOffset(uint32_t id);