* Initial pass at refactoring config (not finished)
* Don't forget current state and EDU servers
* More shifting around
* Update server key API tests
* Fix roomserver test
* Fix more tests
* Further tweaks
* Fix current state server test (sort of)
* Maybe fix appservices
* Fix client API test
* Include database connection string in database options
* Fix sync API build
* Update config test
* Fix unit tests
* Fix federation sender build
* Fix gobind build
* Set Listen address for all services in HTTP monolith mode
* Validate config, reinstate appservice derived in directory, tweaks
* Tweak federation API test
* Set MaxOpenConnections/MaxIdleConnections to previous values
* Update generate-config
* Split out adding HTTP routes from making internal APIs for clarity
* Split out more components
* Split out more things
* Finish converting
* internal mux for internal routes
* Server key API (works for monolith but not for polylith yet)
* Re-enable caching on server key API component
* Groundwork for HTTP APIs for server key API
* Hopefully implement HTTP for server key API
* Simplify public key request marshalling from map keys
* Update gomatrixserverlib
* go mod tidy
* Common -> internal
* remove keyring.go
* Update Docker Hub for server key API
* YAML is funny about indentation
* Wire in new server key API into hybrid monolith mode
* Create maps
* Route server key API endpoints on internal API mux
* Fix server key API URLs
* Add fetcher behaviour into server key API implementation
* Return error if we failed to fetch some keys
* Return results anyway
* Move things about a bit
* Remove unused code
* Fix comments, don't use federation sender URL in polylith mode
* Add server_key_api to sample config
* Review comments
* HTTP API to cache keys that have been requested
* Overwrite server_key_api listen in monolith hybrid mode