Update public surface api text file with new properties and methods

Author: irvinesunday

test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt

@@ -960,16 +960,18 @@ namespace Microsoft.OpenApi.Services
     }
     public class OpenApiUrlTreeNode
     {
+        public System.Collections.Generic.IDictionary<string, System.Collections.Generic.List<string>> AdditionalData { get; set; }
         public System.Collections.Generic.IDictionary<string, Microsoft.OpenApi.Services.OpenApiUrlTreeNode> Children { get; }
         public bool IsParameter { get; }
-        public string Label { get; }
         public string Path { get; }
-        public Microsoft.OpenApi.Models.OpenApiPathItem PathItem { get; }
+        public System.Collections.Generic.IDictionary<string, Microsoft.OpenApi.Models.OpenApiPathItem> PathItems { get; }
         public string Segment { get; }
+        public void AddAdditionalData(System.Collections.Generic.Dictionary<string, System.Collections.Generic.List<string>> additionalData) { }
         public void Attach(Microsoft.OpenApi.Models.OpenApiDocument doc, string label) { }
         public Microsoft.OpenApi.Services.OpenApiUrlTreeNode Attach(string path, Microsoft.OpenApi.Models.OpenApiPathItem pathItem, string label) { }
-        public bool HasOperations() { }
-        public static Microsoft.OpenApi.Services.OpenApiUrlTreeNode Create(Microsoft.OpenApi.Models.OpenApiDocument doc = null, string label = "") { }
+        public bool HasOperations(string label) { }
+        public static Microsoft.OpenApi.Services.OpenApiUrlTreeNode Create() { }
+        public static Microsoft.OpenApi.Services.OpenApiUrlTreeNode Create(Microsoft.OpenApi.Models.OpenApiDocument doc, string label) { }
     }
     public abstract class OpenApiVisitorBase
     {