Update Current.php

Add possibility to pass custom attributes from XML to current link.

Author: mattkrupnik

lib/internal/Magento/Framework/View/Element/Html/Link/Current.php

@@ -139,7 +139,7 @@ protected function _toHtml()
 
         if ($this->isCurrent()) {
             $html = '<li class="nav item current">';
-            $html .= '<strong>'
+            $html .= '<strong '.$this->getAttributesHtml().'>'
                 . $this->escapeHtml(__($this->getLabel()))
                 . '</strong>';
             $html .= '</li>';