**Describe the feature**: The `bucket/composite` aggregation `date_histogram` doesn't support the `offset` parameter ([doc](https://www.elastic.co/guide/en/elasticsearch/reference/7.1/search-aggregations-bucket-composite-aggregation.html#_date_histogram)) as the `bucket/date_histogram` aggregation ([doc](https://www.elastic.co/guide/en/elasticsearch/reference/7.1/search-aggregations-bucket-datehistogram-aggregation.html#_offset)).
