(client) feat:添加预制件脚本，规范化Dev菜单加载

Client/Assets/Scripts/Prefab/ButtonPrefab.cs

@@ -0,0 +1,26 @@
+using TMPro;
+using UnityEngine;
+using UnityEngine.Events;
+using UnityEngine.UI;
+
+namespace Prefab
+{
+    public class ButtonPrefab:MonoBehaviour
+    {
+        public Button button;
+        public TMP_Text text;
+
+        public string Label
+        {
+            get{return text.text;}
+            set{text.text = value;}
+        }
+
+        public void AddListener(UnityAction callback)
+        {
+            button.onClick.AddListener(callback);
+        }
+    }
+
+
+}