message: Added Trace to the list of permissible HTTP Verbs in Swagger Validation
diff: @@ -16,7 +16,7 @@ namespace AutoRest.Swagger.Validation
  /// </summary>
  public class HttpVerbValidation : TypedRule<Dictionary<string, Operation>>
  {
  - private readonly Regex opRegExp = new Regex(@"^(DELETE|GET|PUT|PATCH|HEAD|OPTIONS|POST)$", RegexOptions.IgnoreCase);
  + private readonly Regex opRegExp = new Regex(@"^(DELETE|GET|PUT|PATCH|HEAD|OPTIONS|POST|TRACE)$", RegexOptions.IgnoreCase);
  /// <summary>
  /// Id of the Rule.
  