<!--- 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 -->

description:
            - Upper bound of virtual machine memory up to which memory hot-plug can be performed.
              Prefix uses IEC 60027-2 standard (for example 1GiB, 1024MiB).
            - Default value is set by engine.
        version_added: "2.5"
    cpu_shares:
        description:
            - Set a CPU shares for this Virtual Machine.
            - Default value is set by oVirt/RHV engine.
    cpu_cores:
        description:
            - Number of virtual CPUs cores of the Virtual Machine.
            - Default value is set by oVirt/RHV engine.
    cpu_sockets:
        description:
            - Number of virtual CPUs sockets of the Virtual Machine.
            - Default value is set by oVirt/RHV engine.
    cpu_threads:
        description:
            - Number of virtual CPUs sockets of the Virtual Machine.
            - Default value is set by oVirt/RHV engine.
        version_added: "2.5"
    type:
        description:
            - Type of the Virtual Machine.
            - Default value is set by oVirt/RHV engine.
            - I(high_performance) is supported since Ansible 2.5 and oVirt/RHV 4.2.
        choices: [ desktop, server, high_performance ]
    quota_id:
        description: