Configuration format v1 (#1230)

* 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

mediaapi/mediaapi.go

@@ -26,11 +26,11 @@ import (
 
 // AddPublicRoutes sets up and registers HTTP handlers for the MediaAPI component.
 func AddPublicRoutes(
-	router *mux.Router, cfg *config.Dendrite,
+	router *mux.Router, cfg *config.MediaAPI,
 	userAPI userapi.UserInternalAPI,
 	client *gomatrixserverlib.Client,
 ) {
-	mediaDB, err := storage.Open(string(cfg.Database.MediaAPI), cfg.DbProperties())
+	mediaDB, err := storage.Open(&cfg.Database)
 	if err != nil {
 		logrus.WithError(err).Panicf("failed to connect to media db")
 	}