message: Added validationcategory and ID
  Added validationcategory and ID
diff: @@ -12,6 +12,18 @@ namespace AutoRest.Swagger.Validation
  {
  private const string SubscriptionId = "subscriptionid";
  private const string ApiVersion = "api-version";
  +
  + /// <summary>
  + /// Id of the Rule.
  + /// </summary>
  + public override string Id => "M2014";
  +
  + /// <summary>
  + /// Violation category of the Rule.
  + /// </summary>
  + public override ValidationCategory ValidationCategory => ValidationCategory.SDKViolation;
  +
  +
  /// <summary>
  /// This rule passes if the parameters are not subscriptionId or api-version
  /// </summary>
  @@ -31,7 +43,7 @@ namespace AutoRest.Swagger.Validation
  /// <summary>
  /// The severity of this message (ie, debug/info/warning/error/fatal, etc)
  /// </summary>
  - public override Category Severity => Category.Warning;
  + public override Category Severity => Category.Error;
  }
  }
  