Add photo visualization page

app/templates/base.html

@@ -22,6 +22,7 @@
                 <a class="nav-link" href="{{ url_for('index') }}">Home <span class="sr-only">(current)</span></a>
             </li>
             <li class="nav-link"><a href="{{ url_for('data') }}">Data</a></li>
+            <li class="nav-link"><a href="{{ url_for('photos') }}">Photos</a></li>
         </ul>
     </div>
 </nav>

app/templates/photos.html

@@ -0,0 +1,9 @@
+{% extends "base.html" %}
+{% import 'bootstrap/wtf.html' as wtf %}
+
+{% block app_content %}
+<h1>Photos</h1>
+{% for img_path in images %}
+   <img src="{{img_path|safe}}" alt="Image placeholder" id="photo" style="width: 200px"/>
+{% endfor %}
+{% endblock %}