* Query whether a room alias exists on app services
Signed-off-by: Andrew Morgan <andrewm@matrix.org>
* Query AS /alias/ API at a lower level
* Add support for querying /users/ on appservices
* Have endpoints query AS users if not found locally
* Add base component
* Convert clientapi to using base component
* Convert federationapi to using base component
* Convert federationsender to using base component
* Convert mediaapi to using base component
* Convert publicroomsapi to using base component
* Convert roomserver to using base component
* Convert syncapi to using base component
* Convert monolith to using base component
* Split out config parsing and roomserver API creation
This involves:
- Parsing the HTTP request
- Requesting auth events from the roomserver via the Query API
- Building the event
- Doing auth checks on the event
- Sending it to the roomserver input log
