Various documentation enhancements (#1728)

* Document public OpenAPI members, remove unused IJsonApiClient

* Include OpenAPI types in API Browser, fix docfx logo, enable Google Analytics

* Add redirects for changed APIs (based on 404s from Google Search Console)

* Convert TOCs to yaml

* Fix caching during local build

* List example projects in documentation

* List key types on API index page

* Document advanced use cases

* Consolidate getting-started steps

* Add GitHub icon

* Fix broken Araxis logo

Author: bkoelman