feat(audio): musica acelerada en CONTINUE?, game_over.ogg, tick del countdown

source/core/audio/jail_audio.cpp

@@ -286,6 +286,11 @@ namespace Ja {
         }
     }
 
+    void Engine::setMusicSpeed(float ratio) {
+        if (current_music_ == nullptr || current_music_->stream == nullptr) { return; }
+        SDL_SetAudioStreamFrequencyRatio(current_music_->stream, ratio);
+    }
+
     void Engine::pauseMusic() {
         if (current_music_ == nullptr || current_music_->state != MusicState::PLAYING) { return; }