第一批重构，主要是物理迁移脚本和部分命名空间的调整

- 结构上迁移文件，将脚本分成 Base/Runtime/Presentation/Procedure/Editor 五大文件夹
- 调整 DataTable 和 Definition 下脚本的命名空间
- 依据 UI-5层架构设计规范 拆分原先的 UI 到 Runtime 和 Presentation 下

Assets/GameMain/Scripts/Base/Entity/EntityData/EffectData.cs

@@ -0,0 +1,33 @@
+//------------------------------------------------------------
+// Game Framework
+// Copyright © 2013-2021 Jiang Yin. All rights reserved.
+// Homepage: https://gameframework.cn/
+// Feedback: mailto:ellan@gameframework.cn
+//------------------------------------------------------------
+
+using System;
+using UnityEngine;
+
+namespace Entity.EntityData
+{
+    [Serializable]
+    public class EffectData : EntityDataBase
+    {
+        [SerializeField]
+        private float m_KeepTime = 0f;
+
+        public EffectData(int entityId, int typeId)
+            : base(entityId, typeId)
+        {
+            m_KeepTime = 3f;
+        }
+
+        public float KeepTime
+        {
+            get
+            {
+                return m_KeepTime;
+            }
+        }
+    }
+}