MariaDB Extended Features

[tanmoysrt]

People is asking for some features at mariadb for long time. In pilot, we should add those as well.

• Data-at-rest encryption. Add support for AWS KMS, Hashicorp Vault and Openbao : https://mariadb.com/docs/server/security/encryption/data-at-rest-encryption/data-at-rest-encryption-tde-fundamentals
• MariaDB audit logging : https://mariadb.com/docs/server/reference/plugins/mariadb-audit-plugin

[tanmoysrt]

First need to have the mariadb variable manager/editor, else it's duplicate effort.