基础内容

必要插件安装
缓动曲线和动画基础
ElementFolder，Track与其次级模块，PathNode重构

Assets/Scripts/GameElements/Track/TrackSubmodules/TrackSubmodule.cs

@@ -0,0 +1,12 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Ichni.RhythmGame
+{
+    public abstract class TrackSubmodule : SubmoduleBase
+    {
+        public Track track;
+        public bool isUpdating;
+    }
+}