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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 -->

- The name of the source role.
            dest_name:
                description:
                    - The name of the destination role.
        version_added: "2.5"
    domain_mappings:
        description:
            - "Mapper which maps aaa domain name between VM's OVF and the destination aaa domain this VM should be registered to,
               relevant when C(state) is registered.
               The aaa domain mapping is described by the following dictionary:"
        suboptions:
            source_name:
                description:
                    - The name of the source aaa domain.
            dest_name:
                description:
                    - The name of the destination aaa domain.
        version_added: "2.5"
    affinity_group_mappings:
        description:
            - "Mapper which maps affinity name between VM's OVF and the destination affinity this VM should be registered to,
               relevant when C(state) is registered."
        version_added: "2.5"
    affinity_label_mappings:
        description:
            - "Mapper which maps affinity label name between VM's OVF and the destination label this VM should be registered to,
               relevant when C(state) is registered."
        version_added: "2.5"
    lun_mappings:
        description: