Closes #33: Add ability to clone objects (pre-populate form fields)

netbox/templates/dcim/powerfeed.html

@@ -1,4 +1,5 @@
 {% extends '_base.html' %}
+{% load buttons %}
 {% load static %}
 {% load custom_links %}
 {% load helpers %}
@@ -30,6 +31,9 @@
         </div>
     </div>
     <div class="pull-right noprint">
+        {% if perms.dcim.add_powerfeed %}
+            {% clone_button 'dcim:powerfeed_add' powerfeed %}
+        {% endif %}
         {% if perms.dcim.change_powerfeed %}
             <a href="{% url 'dcim:powerfeed_edit' pk=powerfeed.pk %}" class="btn btn-warning">
                 <span class="fa fa-pencil" aria-hidden="true"></span>