New vault management module.

There is a new vault management module placed in the plugins folder:

  plugins/modules/ipavault.py

The vault module allows to ensure presence and absence of vaults, manage
members and owner of the vault, and archive data in the vault.

Here is the documentation for the module:

    README-vault.md

New example playbooks have been added:

    playbooks/vault/data-archive-in-asymmetric-vault.yml
    playbooks/vault/data-archive-in-symmetric-vault.yml
    playbooks/vault/ensure-asymetric-vault-is-absent.yml
    playbooks/vault/ensure-asymetric-vault-is-present.yml
    playbooks/vault/ensure-service-vault-is-absent.yml
    playbooks/vault/ensure-service-vault-is-present.yml
    playbooks/vault/ensure-shared-vault-is-absent.yml
    playbooks/vault/ensure-shared-vault-is-present.yml
    playbooks/vault/ensure-standard-vault-is-absent.yml
    playbooks/vault/ensure-standard-vault-is-present.yml
    playbooks/vault/ensure-symetric-vault-is-absent.yml
    playbooks/vault/ensure-symetric-vault-is-present.yml
    playbooks/vault/ensure-vault-is-present-with-members.yml
    playbooks/vault/ensure-vault-member-group-is-absent.yml
    playbooks/vault/ensure-vault-member-group-is-present.yml
    playbooks/vault/ensure-vault-member-user-is-absent.yml
    playbooks/vault/ensure-vault-member-user-is-present.yml
    playbooks/vault/ensure-vault-owner-is-absent.yml
    playbooks/vault/ensure-vault-owner-is-present.yml

New tests added for the module:

    tests/vault/test_vault.yml