<!--- 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 -->

graphical_console = self.param('graphical_console')
        if not graphical_console:
            return False
        vm_service = self._service.service(entity.id)
        gcs_service = vm_service.graphics_consoles_service()
        graphical_consoles = gcs_service.list()
        
        if bool(graphical_console.get('headless_mode')):
            if not self._module.check_mode:
                for gc in graphical_consoles:
                    gcs_service.console_service(gc.id).remove()
            return len(graphical_consoles) > 0
        
        protocol = graphical_console.get('protocol')
        if isinstance(protocol, str):