1.fix some bug for creation tools

TNode/Editor/Resources/ScriptTemplates/NewGraph.cs.txt

@@ -1,10 +1,4 @@
-using TNode.Editor;
-using UnityEditor;
-using UnityEditor.Callbacks;
-using UnityEditor.Experimental.GraphView;
-using UnityEngine;
-using UnityEngine.UIElements;
-
+using TNode.Models;
 public class $GraphClassName$ : GraphData{
     
 }

TNode/Editor/Tools/GraphEditorCreator/SourceGeneratorForGraphEditor.cs

@@ -23,14 +23,14 @@ namespace TNode.Editor.Tools.GraphEditorCreator{
             var source = template.text.Replace("$EditorClassName$",editorClassName).Replace("$GraphClassName$",graphClassName);
             return source;
         }
-        public string GenerateGraph(string graphClassName,string templatePath){
+        public string GenerateGraph(string graphClassName,string templateName="NewGraph.cs"){
+            TextAsset template = Resources.Load<TextAsset>("ScriptTemplates/"+templateName);
             //Check if graph class name is valid
             var regex = new System.Text.RegularExpressions.Regex("^[a-zA-Z0-9_]+$");
             if(!Regex.IsMatch(graphClassName)){
                 Debug.LogError("The graph class name is invalid. It must be a valid C# identifier.");
             }
-            var template = File.ReadAllText(templatePath);
-            var source = template.Replace("$GraphClassName$",graphClassName);
+            var source = template.text.Replace("$GraphClassName$",graphClassName);
             return source;
         }
     }

Usage.meta

@@ -1,8 +0,0 @@
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-folderAsset: yes
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-  userData: 
-  assetBundleName: 
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