message: Added comment for SurveyElement class for showing it in documentation
diff: @@ -900,6 +900,9 @@ export class SurveyError {
  }
  }
  +/**
  + * Base class of SurveyJS Elements.
  + */
  export class SurveyElement extends Base implements ISurveyElement {
  private surveyImplValue: ISurveyImpl;
  private surveyDataValue: ISurveyData;
  