Add selectmenu widget path

Author: mrtuvn

app/code/Magento/Theme/view/base/requirejs-config.js

@@ -39,6 +39,7 @@ var config = {
             'jquery-ui-modules/progressbar': 'jquery/ui-modules/widgets/progressbar',
             'jquery-ui-modules/resizable': 'jquery/ui-modules/widgets/resizable',
             'jquery-ui-modules/selectable': 'jquery/ui-modules/widgets/selectable',
+            'jquery-ui-modules/selectmenu': 'jquery/ui-modules/widgets/selectmenu',
             'jquery-ui-modules/slider': 'jquery/ui-modules/widgets/slider',
             'jquery-ui-modules/sortable': 'jquery/ui-modules/widgets/sortable',
             'jquery-ui-modules/spinner': 'jquery/ui-modules/widgets/spinner',