Support page header (page hero) in archive-taxonomy layouts (#2320)

* Support page header in archive-taxonomy layout

_layouts/archive-taxonomy.html

@@ -3,13 +3,27 @@
 author_profile: false
 ---
 
+{% if page.header.overlay_color or page.header.overlay_image or page.header.image %}
+  {% include page__hero.html %}
+{% elsif page.header.video.id and page.header.video.provider %}
+  {% include page__hero_video.html %}
+{% endif %}
+
+{% if page.url != "/" and site.breadcrumbs %}
+  {% unless paginator %}
+    {% include breadcrumbs.html %}
+  {% endunless %}
+{% endif %}
+
 <div id="main" role="main">
   {% include sidebar.html %}
 
   <div class="archive">
-    <h1 class="page__title">{{ page.title }}</h1>
+    {% unless page.header.overlay_color or page.header.overlay_image %}
+      <h1 id="page-title" class="page__title">{{ page.title }}</h1>
+    {% endunless %}
     {% for post in page.posts %}
       {% include archive-single.html %}
     {% endfor %}
   </div>
-</div>
+</div>