<!--- 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 -->

state=dict(type='str', default='present', choices=[
            'absent', 'next_run', 'present', 'registered', 'running', 'stopped', 'suspended', 'exported', 'reboot'
        ]),
        name=dict(type='str'),
        id=dict(type='str'),
        cluster=dict(type='str'),
        allow_partial_import=dict(type='bool'),
        template=dict(type='str'),
        template_version=dict(type='int'),
        use_latest_template_version=dict(type='bool'),
        storage_domain=dict(type='str'),
        disk_format=dict(type='str', default='cow', choices=['cow', 'raw']),
        disks=dict(type='list', default=[]),
        memory=dict(type='str'),
        memory_guaranteed=dict(type='str'),
        memory_max=dict(type='str'),
        cpu_sockets=dict(type='int'),
        cpu_cores=dict(type='int'),
        cpu_shares=dict(type='int'),
        cpu_threads=dict(type='int'),
        type=dict(type='str', choices=['server', 'desktop', 'high_performance']),
        operating_system=dict(type='str'),
        cd_iso=dict(type='str'),
        boot_devices=dict(type='list', choices=['cdrom', 'hd', 'network']),
        vnic_profile_mappings=dict(default=[], type='list'),
        cluster_mappings=dict(default=[], type='list'),
        role_mappings=dict(default=[], type='list'),
        affinity_group_mappings=dict(default=[], type='list'),
        affinity_label_mappings=dict(default=[], type='list'),
        lun_mappings=dict(default=[], type='list'),