<!--- 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 -->
I would like to be able to set the keyboard layout for graphical console through ansible, as it's already possible via API and UI

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.3/html/rest_api_guide/types#types-display
==> keyboard_layout

##### 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 -->
In countries like Germany, I would like to setup the keyboard layout native to german. This is possible by API and UI, but not using ansible.

<!--- Paste example playbooks or commands between quotes below -->
```yaml
ovirt_vm:
  graphical_console:
    protocol:
      - vnc
    keyboard_layout: de_DE          
```

<!--- 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):