API changesedit

Suggest stats metrics deprecatededit

The suggest stats were previously folded into the search on the indices stats API. As such, the suggest metric on the indices stats API has been a synonym for the search metric. In 6.3.0, the suggest metric is deprecated in favor of using search.

Similarly, the suggest index metric on the indices metric on the nodes stats API has provided a response containing only an empty object since 5.0.0. In 6.3.0 this metric has been deprecated.