重新设计了FlowLIbrary相关类；为工作台默认添加了基础依赖、默认画布。

NodeFlow/Model/Library/LibraryMdDd.cs

@@ -0,0 +1,20 @@
+using Serein.Library;
+using System.Reflection;
+
+namespace Serein.NodeFlow.Model.Library
+{
+    public class LibraryMdDd
+    {
+        public MethodDetails MethodDetails { get;  }
+        public MethodInfo MethodInfo { get;  }
+        public DelegateDetails DelegateDetails { get; }
+
+        public LibraryMdDd(MethodInfo methodInfo, MethodDetails methodDetails, DelegateDetails delegateDetails)
+        {
+            MethodDetails = methodDetails;
+            MethodInfo = methodInfo;
+            DelegateDetails = delegateDetails;
+        }
+    }
+
+}