code: public static Cell<?> setPadding (final Padding padding, final Cell<?> cell) {
  		return cell.pad(padding.getTop(), padding.getLeft(), padding.getBottom(), padding.getRight());
  	}
docs: Allows to set Cell's padding with the Padding object, which has be done externally, as it's not part of
  the standard libGDX API.
  @param padding contains data of padding sizes.
  @param cell will have the padding set according to the given data.
  @return the given cell for chaining.