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##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
Currently it's not possible to specify disks to be included in the snapshot, always all disks are used.

##### 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_snapshot

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->

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Could look like:
```yaml
ovirt_snapshot:
  description: My snap
  vm_name: myvm
  disks:
    - id: 123
    - id: 456
```

or 

```yaml
ovirt_snapshot:
  description: My snap
  vm_name: myvm
  disks:
    - name: myvm_disk_db
    - name: myvm_disk_store
```

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download_image_path:
        description:
            - "Path on a file system where snapshot should be downloaded."
            - "Note that you must have an valid oVirt/RHV engine CA in your system trust store
               or you must provide it in C(ca_file) parameter."
            - "Note that the snapshot is not downloaded when the file already exists,
               but you can forcibly download the snapshot when using C(force) I (true)."
        version_added: "2.8"
    upload_image_path:
        description:
            - "Path to disk image, which should be uploaded."
        version_added: "2.8"
    use_memory:
        description:
            - "If I(true) and C(state) is I(present) save memory of the Virtual
               Machine if it's running."
            - "If I(true) and C(state) is I(restore) restore memory of the
               Virtual Machine."
            - "Note that Virtual Machine will be paused while saving the memory."
        aliases:
            - "restore_memory"
            - "save_memory"
        type: bool
    keep_days_old:
        description:
            - "Number of days after which should snapshot be deleted."
            - "It will check all snapshots of virtual machine and delete them, if they are older."
        version_added: "2.8"
notes:
    - "Note that without a guest agent the data on the created snapshot may be