(menu) add Visibility property

src/opnsense/mvc/app/models/OPNsense/Base/Menu/MenuItem.php

@@ -78,6 +78,12 @@ class MenuItem
      */
     private $isExternal = "N";
 
+    /**
+     * visibility level, all, hidden, ...
+     * @var string
+     */
+    private $visibility = 'all';
+
     /**
      * parent node, used to mark active nodes
      * @var null|MenuItem
@@ -138,6 +144,15 @@ class MenuItem
         $this->sortOrder = $value;
     }
 
+    /**
+     * set visibility
+     * @param $value visibility level
+     */
+    public function setVisibility($value)
+    {
+        $this->visibility = $value;
+    }
+
     /**
      * get sort order
      * @return int
@@ -219,6 +234,15 @@ class MenuItem
         return $this->isExternal;
     }
 
+    /**
+     * getter for visibility level
+     * @return string
+     */
+    public function getVisibility()
+    {
+        return $this->visibility;
+    }
+
     /**
      * check if this item is selected
      * @return bool is this item selected