MongoDB: Optimise Test Info/Plan Text Indexes
This MR restricts the text indexes for the TEST_INFO and TEST_PLAN databases to a targeted set of fields.
This drops uninteresting data such as jwks and MTLS certificates greatly reducing the size of the indexes resulting in them being far quicker to create and use.
Additionally the search field in plans.html is reinstated now that the indexing issue is resolved.
Ref #1257
Closes #1056
Edited by Alan Smillie