Update uiXXXXX documentation for autogenerated properties * scripts/gui/uitoolbar.m: added ref to autogenerated properties * scripts/gui/uicontextmenu.m: added ref to autogenerated properties * scripts/gui/uicontrol.m: added ref to autogenerated properties * scripts/gui/uipanel.m: added ref to autogenerated properties * scripts/gui/uipushtool.m: added ref to autogenerated properties * scripts/gui/uitoggletool.m: added ref to autogenerated properties