Allow default_route usage to be configurable via the ovirt_network module

[ilush]

SUMMARY

Allow default_route usage to be configurable via the ovirt_network module

It is already present in API[1] and SDK[2], but not in ansible yet.
[1] http://ovirt.github.io/ovirt-engine-api-model/master/#types/network_usage
[2] https://github.com/oVirt/python-ovirt-engine-sdk4/blob/main/lib/ovirtsdk4/types.py#L26156

COMPONENT NAME

ovirt_network module

ADDITIONAL INFORMATION

This would allow changing the default route for the hosts

- ovirt.ovirt.ovirt_network:
    data_center: mydatacenter
    name: mynetwork
    vlan_tag: 10
    vm_network: true
    clusters:
      - name: myshinycluster
        default_route: true