增加A2WToolBox工具集，增加Launch场景核LaunchPanel

Assets/A2WToolBox/Runtime/UIManager/UIPanel.cs

@@ -0,0 +1,19 @@
+using Cysharp.Threading.Tasks;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace A2W
+{
+    public abstract class UIPanel : MonoBehaviour
+    {
+        public abstract void Init();
+
+        public abstract UniTask Show();
+
+        public abstract UniTask Hide();
+    }
+}
+
+
+