增加A2WToolBox工具集，增加Launch场景核LaunchPanel

Assets/A2WToolBox/3rd/NaughtyAttributes/Scripts/Test/ExpandableTest.cs

@@ -0,0 +1,31 @@
+using UnityEngine;
+
+namespace NaughtyAttributes.Test
+{
+    public class ExpandableTest : MonoBehaviour
+    {
+        // See #294
+        public int precedingField = 5;
+
+        [Expandable]
+        public ScriptableObject obj0;
+
+        public ExpandableScriptableObjectNest1 nest1;
+    }
+
+    [System.Serializable]
+    public class ExpandableScriptableObjectNest1
+    {
+        [Expandable]
+        public ScriptableObject obj1;
+
+        public ExpandableScriptableObjectNest2 nest2;
+    }
+
+    [System.Serializable]
+    public class ExpandableScriptableObjectNest2
+    {
+        [Expandable]
+        public ScriptableObject obj2;
+    }
+}