Add inner_hits DSL #950
Description
Is your feature request related to a problem? Please describe.
Issues not listed yet, but I create new one right now!
Describe the solution you'd like
There is no interface to get inner_hits from my result record
Describe alternatives you've considered
Would be fine to add method like inner_hits, simple for now, to retrive an array of inner_hits
Additional context
I have no one, just links to original docs:
https://www.elastic.co/guide/en/elasticsearch/reference/current/inner-hits.html