This is a follow up ticket to #181945 with a new consensus /results api design.

• GET /results/indices_latest/:pattern - get latest index results
  returns

  {
   "indexName1": {latest_result}
   "indexName2": {latest_result}
  }

Acceptance criteria:

• refactor existing getting latest /results in DQD implementation on both server and client to support the new suggested api design above. Rename /results to /results/indices_latest/:pattern.