ISTWCMS-3505: adding colour bar to the header

source/_patterns/01-global/01-colors-bars/_color-bar.twig

+{% set lvls = 4 %}
+<div id="color-bar" class="uw_site--colors">
+  <div class="uw-section--innner">
+    <div class="uw-site--cbar">
+      {% for lvl in range(1,lvls) %}
+        <div class="uw-colors--lvl{{ lvl }}--background uw-cbar"></div>
+      {% endfor %}
+    </div>
+  </div>
+</div>

source/_patterns/03-layouts/header/header.twig

-<header class="uw-header" role="banner">
+{% set additional_attributes = {
+    'class': classes,
+} %}
+
+<header {{ add_attributes(additional_attributes) }} role="banner">
     <div class="uw-header__wrapper">
         {% include "@components/site-logo/site-logo.twig"%}
         {% block content %}
@@ -7,4 +11,5 @@
             } %}
         {% endblock %}
     </div>
+    {% include "@global/01-colors-bars/_color-bar.twig" %}
 </header>

source/_patterns/03-layouts/header/header.yml

@@ -35,4 +35,7 @@ items:
       options:
         attributes:
           class: ''
-    in_active_trail: false
+    in_active_trail: false
\ No newline at end of file
+classes:
+  - 'uw-header'
+  - 'default'
\ No newline at end of file