feat():完成3种模式的基本运行框架

Assets/Script/Gameplay/UI/StartGameButton.cs

@@ -0,0 +1,12 @@
+using UnityEngine;
+using Core;
+namespace UI
+{
+    public class StartGameButton : UIBase
+    {
+        public void StartGame()
+        {
+            ScenesManager.Instance.LoadGameplay("Level1");
+        }
+    }
+}