adds matched_queries field for the Hit object

[AnyRoad]

Each query accepts a _name in its top level definition.
You can use named queries to track which queries matched
returned documents. If named queries are used, the response
includes a matched_queries property for each hit.

There are two forms of the matched_queries response:

• if include_named_queries_score was set, response includes map with named query and score
• otherwise just list of the named queries. so new field is just a JsonElement with 2 extension functions for each case.

[jillesvangurp]

Thanks for this. The build failed because of some issue with libcurl on gh actions. Can you merge master? That should fix it.

[AnyRoad]

Thank you! Sorry, did not have time to merge it in the morning 😃

[jillesvangurp]

No worries; merged myself. It turns out this only works with newer versions of opensearch and elasticsearch. So had to fix the test for that as well.