As part of this commit we refactor the following in the o.e.search package:
- rename `org.elasticsearch.search.fetch` to `org.opensearch.search.fetch`
- rename `org.elasticsearch.search.internal` to `org.opensearch.search.internal`
- rename `org.elasticsearch.search.profile` to `org.opensearch.search.profile`
- rename `org.elasticsearch.search.query` to `org.opensearch.search.query`
- rename `org.elasticsearch.search.suggest` to `org.opensearch.search.suggest`
- rename other instances of Elasticsearch to OpenSearch in these packages.
Signed-off-by: Rabi Panda <adnapibar@gmail.com>