Orchardcore: Implement ElasticSearch module

[sebastienros]

Same as Lucene

[hishamco]

You read my mind, yesterday I was read a great post on ElasticSearch

[hishamco]

FYI this is a good article https://khalidabuhakmeh.com/search-experiences-for-your-aspnet-core-apps-with-elasticsearch

[Mpdreamz]

Hi! I work for Elastic feel to to @ me on PR's happy to help/answer questions.

[hishamco]

@Mpdreamz if you are interested you could start in the PR for this module

[Skrypt]

The ElasticSearch module should leverage Nest for Queries. We have now Lucene Queries which uses the Lucene Query API but ElasticSearc has already this done with Nest. So we should end up with ElasticSearch Queries that should be quite the same than Lucene Queries with some small differences here and there since Nest for example can use Exists Queries.

[Skrypt]

I think we need to first make a service to retrieve different Indexing Providers. And I think we should be able to still use Lucene and/or ElasticSearch at the same time.

[jtkech]

@Mpdreamz thanks for proposing to help us!

[caki0915]

+1 for this feature. 👏