<!--- Verify first that your feature was not already discussed on GitHub -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
Add 'restart' state or restart option to the `ovirt_vm` module.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
ovirt_vm

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

<!--- HINT: You can also paste gist.github.com links for larger files -->

for disk in self.param('disks'):
            
            disk_id = disk.get('id')
            if disk_id is None:
                disk_id = getattr(
                    search_by_name(
                        service=disks_service,
                        name=disk.get('name')
                    ),
                    'id',
                    None
                )
            
            disk_attachment = disk_attachments_service.attachment_service(disk_id)
            if get_entity(disk_attachment) is None:
                if not self._module.check_mode:
                    disk_attachments_service.add(
                        otypes.DiskAttachment(
                            disk=otypes.Disk(
                                id=disk_id,
                            ),
                            active=disk.get('activate', True),
                            interface=otypes.DiskInterface(
                                disk.get('interface', 'virtio')
                            ),
                            bootable=disk.get('bootable', False),
                        )
                    )
                self.changed = True
    def __get_vnic_profile_id(self, nic):