calculateHeight = (props) => {
  let height = props.theme.FormGroup.height

  if (props.multiline) {
    height = props.theme.FormGroup.height * props.numberOfLines
  }

  if (!props.inlineLabel) {
    height += props.theme.Label.stackedHeight
  }

  return (height)
}
Calculate the height based on the given field properties.
The inline label and multiline properties affect the height.

@param {Object} props
@returns {int}