6347 Cache the number of each component type assigned to devices/VMs (#12632)

---------

Co-authored-by: Jeremy Stretch <jstretch@netboxlabs.com>

netbox/virtualization/tables/virtualmachines.py

@@ -1,10 +1,11 @@
 import django_tables2 as tables
+from django.utils.translation import gettext as _
+
 from dcim.tables.devices import BaseInterfaceTable
+from netbox.tables import NetBoxTable, columns
 from tenancy.tables import ContactsColumnMixin, TenancyColumnsMixin
 from virtualization.models import VirtualMachine, VMInterface
 
-from netbox.tables import NetBoxTable, columns
-
 __all__ = (
     'VirtualMachineTable',
     'VirtualMachineVMInterfaceTable',
@@ -70,6 +71,9 @@ class VirtualMachineTable(TenancyColumnsMixin, ContactsColumnMixin, NetBoxTable)
     tags = columns.TagColumn(
         url_name='virtualization:virtualmachine_list'
     )
+    interface_count = tables.Column(
+        verbose_name=_('Interfaces')
+    )
 
     class Meta(NetBoxTable.Meta):
         model = VirtualMachine