<!--- 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 -->

equal(self.param('operating_system'), str(entity.os.type)) and
            equal(self.param('boot_menu'), entity.bios.boot_menu.enabled) and
            equal(self.param('soundcard_enabled'), entity.soundcard_enabled) and
            equal(self.param('smartcard_enabled'), getattr(vm_display, 'smartcard_enabled', False)) and
            equal(self.param('io_threads'), entity.io.threads) and
            equal(self.param('ballooning_enabled'), entity.memory_policy.ballooning) and
            equal(self.param('serial_console'), getattr(entity.console, 'enabled', None)) and
            equal(self.param('usb_support'), entity.usb.enabled) and
            equal(self.param('sso'), True if entity.sso.methods else False) and
            equal(self.param('quota_id'), getattr(entity.quota, 'id', None)) and
            equal(self.param('high_availability'), entity.high_availability.enabled) and
            equal(self.param('high_availability_priority'), entity.high_availability.priority) and
            equal(self.param('lease'), get_link_name(self._connection, getattr(entity.lease, 'storage_domain', None))) and
            equal(self.param('stateless'), entity.stateless) and
            equal(self.param('cpu_shares'), entity.cpu_shares) and
            equal(self.param('delete_protected'), entity.delete_protected) and
            equal(self.param('custom_emulated_machine'), entity.custom_emulated_machine) and
            equal(self.param('use_latest_template_version'), entity.use_latest_template_version) and
            equal(self.param('boot_devices'), [str(dev) for dev in getattr(entity.os.boot, 'devices', [])]) and
            equal(self.param('instance_type'), get_link_name(self._connection, entity.instance_type), ignore_case=True) and
            equal(self.param('description'), entity.description) and
            equal(self.param('comment'), entity.comment) and
            equal(self.param('timezone'), getattr(entity.time_zone, 'name', None)) and
            equal(self.param('serial_policy'), str(getattr(entity.serial_number, 'policy', None))) and
            equal(self.param('serial_policy_value'), getattr(entity.serial_number, 'value', None)) and
            equal(self.param('placement_policy'), str(entity.placement_policy.affinity) if entity.placement_policy else None) and
            equal(self.param('numa_tune_mode'), str(entity.numa_tune_mode)) and
            equal(self.param('rng_device'), str(entity.rng_device.source) if entity.rng_device else None)
        )
    def pre_create(self, entity):