添加水平与垂直布局的重写管理，支持对不可见对象的布局计算。

添加支持自动可见性剔除的滚动管理器。

Editor/OverrideLayout/XericVerticalLayoutGroupEditor.cs

@@ -0,0 +1,32 @@
+using UnityEditor;
+using UnityEditor.UI;
+using UnityEngine;
+using XericUI.OverrideLayout;
+
+namespace XericUIEditor.OverrideLayout
+{
+    [CustomEditor(typeof(XericHorizontalOrVerticalLayoutGroup), true)]
+    [CanEditMultipleObjects]
+    public class XericHorizontalOrVerticalLayoutGroupEditor : HorizontalOrVerticalLayoutGroupEditor
+    {
+        SerializedProperty ignoreInvisible;
+
+        protected override void OnEnable()
+        {
+            base.OnEnable();
+            ignoreInvisible = serializedObject.FindProperty("layoutIgnoreInactive");
+        }
+
+        public override void OnInspectorGUI()
+        {
+            base.OnInspectorGUI();
+            
+            serializedObject.Update();
+            
+            EditorGUILayout.PropertyField(ignoreInvisible, true);
+
+            serializedObject.ApplyModifiedProperties();
+        }
+
+    }
+}