完成mvvm模式下，画布、节点编辑的基本重构

Workbench/Models/TabModel.cs

@@ -6,6 +6,7 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
+using System.Reflection.Metadata;
 using System.Runtime.CompilerServices;
 using System.Text;
 using System.Threading.Tasks;
@@ -13,35 +14,50 @@ using System.Xml.Linq;
 
 namespace Serein.Workbench.Models
 {
-    public partial class FlowCanvasModel : ObservableObject
+    public partial class FlowEditorTabModel : ObservableObject
     {
+        /// <summary>
+        /// tab 名称
+        /// </summary>
         public string Name
         {
             get
             {
 
-                var vm = (FlowCanvasViewModel)content.DataContext;
-                return vm.Name;
+                var vm = (FlowCanvasViewModel)Content.DataContext;
+                return vm.Model.Name ?? "null";
             }
             set
             {
-                var vm = (FlowCanvasViewModel)content.DataContext;
-                vm.Name = value;
+                var vm = (FlowCanvasViewModel)Content.DataContext;
+                vm.Model.Name = value;
                 OnPropertyChanged(nameof(Name));
             }
         }
 
+
+        /// <summary>
+        /// 正在选中
+        /// </summary>
         [ObservableProperty]
         private bool _isSelected;
+
+        /// <summary>
+        /// 正在编辑标题
+        /// </summary>
         [ObservableProperty]
         private bool _isEditing;
+
+        /// <summary>
+        /// tab对应的控件
+        /// </summary>
         [ObservableProperty]
         private FlowCanvasView content;
 
 
-        public FlowCanvasModel()
+        public FlowEditorTabModel(FlowCanvasView content)
         {
-            
+            this.Content = content;
         }
 
     }