<!--- 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 -->

vm_host = self.param('host')
        vm_service = self._service.vm_service(entity.id)
        
        if entity.status == otypes.VmStatus.UP:
            if vm_host is not None:
                hosts_service = self._connection.system_service().hosts_service()
                current_vm_host = hosts_service.host_service(entity.host.id).get().name
                if vm_host != current_vm_host:
                    if not self._module.check_mode:
                        vm_service.migrate(host=otypes.Host(name=vm_host), force=self.param('force_migrate'))
                        self._wait_for_UP(vm_service)
                    self.changed = True
            elif self.param('migrate'):
                if not self._module.check_mode:
                    vm_service.migrate(force=self.param('force_migrate'))
                    self._wait_for_UP(vm_service)
                self.changed = True
        return entity
    def _wait_for_UP(self, vm_service):
        wait(