<!--- Verify first that your feature was not already discussed on GitHub -->
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##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
Add 'restart' state or restart option to the `ovirt_vm` module.

##### 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 -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

<!--- HINT: You can also paste gist.github.com links for larger files -->

name=module.params['cluster']
                    ) if module.params['cluster'] else None,
                    vnic_profile_mappings=_get_vnic_profile_mappings(module)
                    if module.params['vnic_profile_mappings'] else None,
                    reassign_bad_macs=module.params['reassign_bad_macs']
                    if module.params['reassign_bad_macs'] is not None else None,
                    registration_configuration=otypes.RegistrationConfiguration(
                        cluster_mappings=_get_cluster_mappings(module),
                        role_mappings=_get_role_mappings(module),
                        domain_mappings=_get_domain_mappings(module),
                        lun_mappings=_get_lun_mappings(module),
                        affinity_group_mappings=_get_affinity_group_mappings(module),
                        affinity_label_mappings=_get_affinity_label_mappings(module),
                    ) if (module.params['cluster_mappings']
                          or module.params['role_mappings']
                          or module.params['domain_mappings']
                          or module.params['lun_mappings']
                          or module.params['affinity_group_mappings']
                          or module.params['affinity_label_mappings']) else None
                )
                if module.params['wait']:
                    vm = vms_module.wait_for_import()
                else:
                    
                    vm = vm_service.get()
            ret = {
                'changed': changed,
                'id': vm.id,
                'vm': get_dict_of_struct(vm)
            }