<!--- 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 -->

module = AnsibleModule(
        argument_spec=argument_spec,
        supports_check_mode=True,
        required_one_of=[['id', 'name']],
        required_if=[
            ('state', 'registered', ['storage_domain']),
        ],
        required_together=[['snapshot_name', 'snapshot_vm']]
    )
    check_sdk(module)
    check_params(module)
    try:
        state = module.params['state']
        auth = module.params.pop('auth')
        connection = create_connection(auth)
        check_deprecated_params(module, connection)
        vms_service = connection.system_service().vms_service()
        vms_module = VmsModule(
            connection=connection,
            module=module,
            service=vms_service,
        )
        vm = vms_module.search_entity(list_params={'all_content': True})
        
        vm_existed = True if vm else False
        control_state(vm, vms_service, module)
        if state in ('present', 'running', 'next_run'):
            if module.params['xen'] or module.params['kvm'] or module.params['vmware']:
                vms_module.changed = import_vm(module, connection)