增加A2WToolBox工具集，增加Launch场景核LaunchPanel

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

@@ -0,0 +1,30 @@
+using UnityEngine;
+
+namespace NaughtyAttributes.Test
+{
+    public class RequiredTest : MonoBehaviour
+    {
+        [Required]
+        public Transform trans0;
+
+        public RequiredNest1 nest1;
+    }
+
+    [System.Serializable]
+    public class RequiredNest1
+    {
+        [Required]
+        [AllowNesting] // Because it's nested we need to explicitly allow nesting
+        public Transform trans1;
+
+        public RequiredNest2 nest2;
+    }
+
+    [System.Serializable]
+    public class RequiredNest2
+    {
+        [Required("trans2 is invalid custom message - hohoho")]
+        [AllowNesting] // Because it's nested we need to explicitly allow nesting
+        public Transform trans2;
+    }
+}