Updates based on CR

Author: darrelmiller

src/Microsoft.OpenApi.Workbench/MainModel.cs

@@ -163,7 +163,7 @@ protected void OnPropertyChanged(string propertyName)
         /// The core method of the class.
         /// Runs the parsing and serializing.
         /// </summary>
-        internal void Validate()
+        internal void ParseDocument()
         {
             try
             {

src/Microsoft.OpenApi.Workbench/MainWindow.xaml.cs

@@ -20,7 +20,7 @@ public MainWindow()
 
         private void Button_Click(object sender, RoutedEventArgs e)
         {
-            _mainModel.Validate();
+            _mainModel.ParseDocument();
         }
     }
 }

src/Microsoft.OpenApi.Workbench/StatsVisitor.cs

@@ -1,4 +1,7 @@
-using System;
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. 
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

src/Microsoft.OpenApi/Services/OpenApiWalker.cs

@@ -38,6 +38,7 @@ public void Walk(OpenApiDocument doc)
             {
                 return;
             }
+
             _schemaLoop.Clear();
             _pathItemLoop.Clear();
             _inComponents = false;

test/Microsoft.OpenApi.Tests/Validations/OpenApiReferenceValidationTests.cs

@@ -75,7 +75,7 @@ public void ReferencedSchemaShouldOnlyBeValidatedOnce()
         }
 
         [Fact]
-        public void UnResolvedReferencedSchemaShouldNotBeValidated()
+        public void UnresolvedReferenceSchemaShouldNotBeValidated()
         {
             // Arrange
             var sharedSchema = new OpenApiSchema
@@ -105,7 +105,7 @@ public void UnResolvedReferencedSchemaShouldNotBeValidated()
         }
 
         [Fact]
-        public void UnResolvedSchemaReferencedShouldNotBeValidated()
+        public void UnresolvedSchemaReferencedShouldNotBeValidated()
         {
             // Arrange