[Feature/extensions] Add getSettings support for AD#686

Merged

saratvemulapalli merged 3 commits intoopensearch-project:feature/extensionsfrom dbwiddis:get-settings

Oct 12, 2022

+165-36

Commits on Oct 10, 2022

Implement Extension getSettings as copy of Plugin getSettings
dbwiddis
committed

Commits on Oct 11, 2022

Copy updated HelloWorld action to placeholder RestCreateDetectorAction
dbwiddis
committed
Replace references to deleted BaseNodeRequest with TransportRequest
dbwiddis
committed