Added temporary HTML templates for event_management

redbrickboard/event_management/templates/event_management/event-details.html

+{% block content %}
+<p>hello pls print huhuhu ano ba</p>
+<img src="{{ object.event_header.url }}" width = '300'/>
+<p><a href='{{ object.get_absolute_url }}'>{{ object }}</a></p>
+<p>{{ object.event_organizer }}</p>
+{% endblock %}

redbrickboard/event_management/templates/event_management/event-list.html

+{% block content %}
+<ul>
+    {% for event in object_list %}
+        <li>
+            <a href="{{ event.get_absolute_url }}">{{ event.event_name }}</a>
+        </li>
+    {% endfor %}
+</ul>
+{% endblock %}