Add search APIs: search by TitleCreatorYear or search by Tag

[jungle-gym-ac]

I'm a user of Zotero-Link Plugin. I encountered Search Accuracy Issue and I tried the solution proposed by this comment, which solved my problem.

Zotero-Bridge‘s original search API uses "quicksearch-everything" search mode provided by ZotServer Search Endpoint. In this Pull Request, I added to two more search APIs that uses "quicksearch-titleCreatorYear" and "tag" search modes of ZotServer, respectively. These new APIs can be used by Zotero-Link to provide different search modes.