Added WebUI

Adafruit_Video_Looper/templates/security/_messages.html

@@ -0,0 +1,9 @@
+{%- with messages = get_flashed_messages(with_categories=true) -%}
+{% if messages %}
+<ul class="flashes">
+  {% for category, message in messages %}
+  <li class="{{ category }}">{{ message }}</li>
+  {% endfor %}
+</ul>
+{% endif %}
+{%- endwith %}