Add Tenancy to Rack Reservations; Fixes #1592 (#1672)

* fixed prefix header to represent new serial "vlan_vid"

* shows option in creation now

* fixed visibility on rack page

* cleanup

* Added view to Tenant page

* Moved migration for update from #1666 and fixed tenant enumeration in FilterForm

* Fixed conflict #1

* Fixed filters from merge and made migration merge

* added tenant to api

* Fixed migrations problem

* Added Tenant to bulkedit option

netbox/templates/dcim/rack.html

@@ -233,12 +233,14 @@
                 <table class="table table-hover panel-body">
                     <tr>
                         <th>Units</th>
+                        <th>Tenant</th>
                         <th>Description</th>
                         <th></th>
                     </tr>
                     {% for resv in reservations %}
                         <tr>
                             <td>{{ resv.unit_list }}</td>
+                            <td>{{ resv.tenant }}</td>
                             <td>
                                 {{ resv.description }}<br />
                                 <small>{{ resv.user }} &middot; {{ resv.created }}</small>