<!--- 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 -->

- cdrom
- name: Stop vm
  ovirt_vm:
    state: stopped
    name: myvm
- name: Upgrade memory to already created VM
  ovirt_vm:
    name: myvm
    memory: 4GiB
- name: Hot plug memory to already created and running VM (VM won't be restarted)
  ovirt_vm:
    name: myvm
    memory: 4GiB
# Create/update a VM to run with two vNUMA nodes and pin them to physical NUMA nodes as follows:
# vnuma index 0-> numa index 0, vnuma index 1-> numa index 1
- name: Create a VM to run with two vNUMA nodes
  ovirt_vm:
    name: myvm
    cluster: mycluster
    numa_tune_mode: "interleave"
    numa_nodes:
    - index: 0
      cores: [0]
      memory: 20
      numa_node_pins: [0]
    - index: 1
      cores: [1]
      memory: 30
      numa_node_pins: [1]
- name: Update an existing VM to run without previously created vNUMA nodes (i.e. remove all vNUMA nodes+NUMA pinning setting)