Missing Index mapping settings (#1500) (#1543)

* Add index mapping limits

* more index settings

* Update specification/indices/_types/IndexSettings.ts

Co-authored-by: Tomas Della Vedova <[email protected]>

* move to doc id

* unflattened props

Co-authored-by: Tomas Della Vedova <[email protected]>

Co-authored-by: Philip Krauss <[email protected]>
Co-authored-by: Tomas Della Vedova <[email protected]>

Author: 3 people