Add builder method to IndexQuery

[kitkars]

Is it ok to add a simple static builder method to the IndexQuery class? 😬

org.springframework.data.elasticsearch.core.query.IndexQuery

public static IndexQueryBuilder builder(){
   return new IndexQueryBuilder();
}

So that we could use it as shown below.

IndexQuery.builder()
                  .withObject(...)
                  ...
                 .build();

[sothawo]

Feel free to do so and submit a pull request.