RectangularRadioButtonGroup: refactor options into nested radioButtonOptions, convert to optionize, fix call sites, https://github.com/phetsims/sun/issues/740
RectangularRadioButtonGroup: refactor options into nested radioButtonOptions, convert to optionize, fix call sites, https://github.com/phetsims/sun/issues/740

phetsims/energy-forms-and-changes,phetsims/energy-forms-and-changes,phetsims/energy-forms-and-changes