prepare work for remix properties UI

Assets/Scripts/LevelEditor/RemixPropertiesDialog/RemixPropertiesDialog.cs

@@ -0,0 +1,27 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using HeavenStudio.Editor.Track;
+
+using TMPro;
+
+namespace HeavenStudio.Editor 
+{
+    public class RemixPropertiesDialog : MonoBehaviour
+    {
+        [SerializeField] private GameObject propertiesMenu;
+
+        private void Start() {}
+
+        public void SwitchSettingsDialog()
+        {
+            if(propertiesMenu.activeSelf) {
+                propertiesMenu.SetActive(false);
+            } else {
+                propertiesMenu.SetActive(true);
+            }
+        }
+
+        private void Update() {}
+    }
+}