SearchKit - Allow searches of OptionValues, LocationTypes, CustomFields

[colemanw]

Overview

This flips the switch on a few entities to be searchable in SearchKit, with an eye toward more UIs being built with it.

Before

SearchKit doesn't work for OptionValues, CustomFields or LocationTypes

After

It does

Technical Details

Marks the entities searchable, and adds view/edit links for OptionValues

[civibot]

(Standard links)

• If this is your first pull-request for CiviCRM, please browse CONTRIBUTING.md for information about the development and testing processes.
• If you are reviewing this pull-request, you may wish to consult the test sites and the Review Standards (long template, short template).

[eileenmcnaughton]

I'm fine with this - there is a meta issue that as we expose more admin config through the api / search kit we potentially make it easier for people to do bad things. I don't think changes that situation much - but something to keep thinking about