code: public DynaFormControl addControl(final Object data, final int colspan, final int rowspan) {
          return addControl(data, DynaFormControl.DEFAULT_TYPE, colspan, rowspan);
      }
docs: Adds control with given data, default type, colspan and rowspan.
  
  @param data data object
  @param colspan colspan
  @param rowspan rowspan
  @return DynaFormControl added control