(client) feat:右键菜单全局与UI分离，Building生成支持，双层地图重写

Client/Assets/Scripts/Entity/Outline.cs

@@ -90,7 +90,7 @@ namespace Entity
             // 检测是否按下的是鼠标右键
             if (Input.GetMouseButtonDown(1)) // 鼠标右键对应的是按钮索引 1
             {
-                var rightMenu = Prefab.RightMenuPrefab.Instance;
+                var rightMenu = Base.RightMenu.Instance;
                 rightMenu.Init(GetMenu());
                 rightMenu.transform.position = Input.mousePosition;
                 rightMenu.Show();