<!--- 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 -->
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 -->

provider_name = self._module.params['export_domain']
        export_sds_service = self._connection.system_service().storage_domains_service()
        export_sd_id = get_id_by_name(export_sds_service, provider_name)
        return export_sds_service.service(export_sd_id)
    def post_export_action(self, entity):
        self._service = self._get_export_domain_service().vms_service()
    def update_check(self, entity):
        res = self._update_check(entity)
        if entity.next_run_configuration_exists:
            res = res and self._update_check(self._service.service(entity.id).get(next_run=True))
        return res
    def _update_check(self, entity):
        def check_cpu_pinning():
            if self.param('cpu_pinning'):
                current = []
                if entity.cpu.cpu_tune:
                    current = [(str(pin.cpu_set), int(pin.vcpu)) for pin in entity.cpu.cpu_tune.vcpu_pins]
                passed = [(str(pin['cpu']), int(pin['vcpu'])) for pin in self.param('cpu_pinning')]
                return sorted(current) == sorted(passed)
            return True
        def check_custom_properties():
            if self.param('custom_properties'):
                current = []
                if entity.custom_properties:
                    current = [(cp.name, cp.regexp, str(cp.value)) for cp in entity.custom_properties]
                passed = [(cp.get('name'), cp.get('regexp'), str(cp.get('value'))) for cp in self.param('custom_properties') if cp]
                return sorted(current) == sorted(passed)
            return True
        def check_host():