add kcp

Src/Core/Utility/References.cs

@@ -4,6 +4,7 @@
     {
         string Get();
         string Value => Get();
+        string Replace(string value) => Get().Replace("{x}",value);
     }
 
     public interface IReference<T>
@@ -37,9 +38,12 @@
         {
             this.value = value;
         }
-
+        #if UNITY_EDITOR
+        [UnityEngine.TextArea]
+        #endif
         public string value;
         public override string Get() => value;
+        public override string ToString() => value;
     }
 
     [System.Serializable]