work on player: integrate vuejs + noscript; remove TemplateMixin for Component and ExposedData; rewrite most of the player; clean up files; do lot of other things

aircox_cms/templates/aircox_cms/sections/item.html

@@ -0,0 +1,10 @@
+<section class="section_item {{ self.css_class }} {{ self.snake_name }}">
+    {% block section_content %}
+    {% block title %}
+    {% if self.show_title %}<h2>{{ self.title }}</h2>{% endif %}
+    {% endblock %}
+    {% block content %}{{ content|safe }}{% endblock %}
+    {% endblock %}
+</section>
+
+