<!--- Verify first that your feature was not already discussed on GitHub -->
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##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
Ansible by default only creates LUKS1 format devices. Considering LUKS2 extra features and age, I think it would be beneficial to allow users to create LUKS2 devices.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
luks_device

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
For reliability, one should use either disk UUID's or labels. UUID's are (in my opinion) a hassle when it comes to using them in Ansible.

Enter labels. Labels can be the same across multiple hosts, and will be tied to the right disk/partition, even if sda1 suddenly becomes sdb1 after some hardware reconfiguration.

Now, the LUKS1 format, which Ansible creates by default with the `luks_device` module, does not support labels... Support was added with LUKS2.

It should be noted that, from what I can see, the module *does already support removing keys from LUKS2 format devices*.

<!--- Paste example playbooks or commands between quotes below -->
```yaml
- name: create LUKS2 container
  luks_device:
    device: "/dev/loop0"
    state: "present"
    keyfile: "/vault/keyfile"
    format: luks2
```
the container can no longer be opened!"
        type: bool
        default: no
    label:
        description:
            - "This option allow the user to create a LUKS2 format container
              with label support, respectively to identify the container by
              label on later usages."
            - "Will only be used on container creation, or when I(device) is
              not specified."
        type: str
        version_added: "2.10"
    uuid:
        description:
            - "With this option user can identify the LUKS container by UUID."
            - "Will only be used when I(device) and I(label) are not specified."
        type: str
        version_added: "2.10"
requirements:
    - "cryptsetup"
    - "wipefs (when I(state) is C(absent))"
    - "lsblk"
    - "blkid (when I(label) or I(uuid) options are used)"
author:
    "Jan Pokorny (@japokorn)"
'''
EXAMPLES = '''
- name: create LUKS container (remains unchanged if it already exists)
  luks_device:
    device: "/dev/loop0"