OpenSearch: No AIML options

### Describe the issue

I'm working with S3 as a vector storage backend for OpenSearch but I can't find the option to enable it in the documentation.

I want to activate the AIMLOptions.S3VectorsEngine describe here in the CreateDomain API: https://docs.aws.amazon.com/opensearch-service/latest/APIReference/API_CreateDomain.html#opensearchservice-CreateDomain-request-AIMLOptions

and in the console described as an Advanced Feature in cluster configuration.

### Links

https://docs.aws.amazon.com/cdk/api/v2/python/aws_cdk.aws_opensearchservice/Domain.html

Start with the aws_cdk.aws_opensearchservice.Domain API linked in the issue and compare its available options with the AWS CreateDomain API's AIMLOptions, especially S3VectorsEngine. Done means the Domain construct exposes this option and its documentation reflects how to enable it.

Written by the indexing model from the issue text.