ExpandCollapseBar fix, instrument in ph-scale, https://github.com/phetsims/sun/issues/562, https://github.com/phetsims/ph-scale/issues/98
ExpandCollapseBar fix, instrument in ph-scale, https://github.com/phetsims/sun/issues/562, https://github.com/phetsims/ph-scale/issues/98

phetsims/sun,phetsims/sun,phetsims/sun