Support for ReactiveElasticsearchClient is in the wrong module #47848
Description
At the moment, spring-boot-elasticsearch provides support for auto-configuring a ReactiveElasticsearchClient. ReactiveElasticsearchClient is part of Spring Data Elasticsearch so, arguably, the auto-configuration support should be in spring-boot-data-elasticsearch. One downside of moving it would be that it becomes harder to have an auto-configured reactive client without also getting auto-configured reactive data repositories. I think that's an edge case though so I'm in favor of the move.