Add assets

Assets/Cainos/Third Party/Lucid Editor/Runtime/Attributes/HelpBoxAttribute.cs

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+using System;
+using UnityEngine;
+
+namespace Cainos.LucidEditor
+{
+    [AttributeUsage(AttributeTargets.Field | AttributeTargets.Method, AllowMultiple = true)]
+    public class HelpBoxAttribute : Attribute
+    {
+        public readonly string message;
+        public readonly HelpBoxMessageType type;
+
+        public HelpBoxAttribute(string message)
+        {
+            this.message = message;
+            this.type = HelpBoxMessageType.Info;
+        }
+
+        public HelpBoxAttribute(string message, HelpBoxMessageType type)
+        {
+            this.message = message;
+            this.type = type;
+        }
+    }
+
+    public enum HelpBoxMessageType
+    {
+        None,
+        Info,
+        Warning,
+        Error
+    }
+}