修复问题，优化bug和游戏，resource资源拆迁

Assets/songsDatabase/SongDataLibrary.cs

@@ -1,4 +1,4 @@
-using UnityEngine;
+using UnityEngine;
 using System.Collections.Generic;
 using System.Collections;
 
@@ -7,6 +7,16 @@ public class SongDataLibrary : MonoBehaviour
     public static SongDataLibrary Instance;
     private Dictionary<int, SongData> songDataDictionary = new Dictionary<int, SongData>();
 
+    [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
+    private static void EnsureRuntimeInstance()
+    {
+        if (Instance != null) return;
+        if (Object.FindAnyObjectByType<SongDataLibrary>() != null) return;
+        var go = new GameObject(nameof(SongDataLibrary));
+        Object.DontDestroyOnLoad(go);
+        go.AddComponent<SongDataLibrary>();
+    }
+
     // Documentation text normalized.
     // Documentation text normalized.
     public string[] subfolderNames;