message: Add matrix event into react survey definition:
diff: @@ -188,6 +188,15 @@ export class Survey extends React.Component<any, any> implements ISurveyCreator
  if(newProps.onTextMarkdown) {
  this.survey.onTextMarkdown.add((sender, options) => { newProps.onTextMarkdown(sender, options); });
  }
  + if(newProps.onMatrixRowAdded) {
  + this.survey.onMatrixRowAdded.add((sender, options) => { newProps.onMatrixRowAdded(sender, options); });
  + }
  + if(newProps.onMatrixCellCreated) {
  + this.survey.onMatrixCellCreated.add((sender, options) => { newProps.onMatrixCellCreated(sender, options); });
  + }
  + if(newProps.onMatrixCellValueChanged) {
  + this.survey.onMatrixCellValueChanged.add((sender, options) => { newProps.onMatrixCellValueChanged(sender, options); });
  + }
  }
  //ISurveyCreator
  