SearchTemplateResponse is missing aggregations

[tony-hizzle]

I have search templates that add aggregations to the response, but SearchTemplateResponse does not include an aggregations field: Map<String, Aggregate> aggregations

        SearchTemplateRequest request = SearchTemplateRequest.of(r -> r
                .index("index_name")
                .id("search_template_name")
                .params(ImmutableMap.of("query_string", JsonData.of("mickey")))
        );

        SearchTemplateResponse<Map> response = elasticsearchClient.searchTemplate(request, Map.class);

[tony-hizzle]

I guess this is a duplicate of #89

[swallez]

Indeed this is a duplicate of #89.