WEBDEV-7033 Add federated search to search service

[rebecca-shoptaw]

Adds a new search type (SearchType.FEDERATED) to the search service to fetch federated results from the new PPS endpoint. Intended to be used for search prototyping.

Current endpoint service names in response:

• Full text: fts
• TV: tvs
• Radio: rcs
• Whisper: whisper

Accessing results:

• response.pageElements.fts.hits --> a full raw hits object with totals, returned count, and an array of hits
• response.federatedResults.fts --> an array of hits correctly formatted as TextHit, TVClipHit, etc.

[github-actions[bot]]

PR Preview Action v1.4.8 :---: Preview removed because the pull request was closed. 2024-10-04 21:42 UTC

[bfalling]

No blockers found. Left some questions & suggestions. Nice job!