<!--- 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 -->

if vm is None:
        return
    force = module.params['force']
    state = module.params['state']
    vm_service = vms_service.vm_service(vm.id)
    if vm.status == otypes.VmStatus.IMAGE_LOCKED:
        wait(
            service=vm_service,
            condition=lambda vm: vm.status == otypes.VmStatus.DOWN,
        )
    elif vm.status == otypes.VmStatus.SAVING_STATE:
        
        wait(
            service=vm_service,
            condition=lambda vm: vm.status == otypes.VmStatus.SUSPENDED,
        )
    elif (
        vm.status == otypes.VmStatus.UNASSIGNED or
        vm.status == otypes.VmStatus.UNKNOWN
    ):
        
        module.fail_json(msg="Not possible to control VM, if it's in '{0}' status".format(vm.status))
    elif vm.status == otypes.VmStatus.POWERING_DOWN:
        if (force and state == 'stopped') or state == 'absent':
            vm_service.stop()
            wait(
                service=vm_service,
                condition=lambda vm: vm.status == otypes.VmStatus.DOWN,
            )
        else: