* Implement /_synapse/admin/v1/register
This is implemented identically to Synapse, so scripts which work
with Synapse should work with Dendrite.
```
Test 27 POST /_synapse/admin/v1/register with shared secret... OK
Test 28 POST /_synapse/admin/v1/register admin with shared secret... OK
Test 29 POST /_synapse/admin/v1/register with shared secret downcases capitals... OK
Test 30 POST /_synapse/admin/v1/register with shared secret disallows symbols... OK
```
Sytest however has `implementation_specific => "synapse"` which stops these
tests from running.
* Add missing muxes to gobind
* Linting
* Implement OpenID module (#599)
- Unrelated: change Riot references to Element in client API routing
Signed-off-by: Bruce MacDonald <contact@bruce-macdonald.com>
* OpenID module tweaks (#599)
- specify expiry is ms rather than vague ts
- add OpenID token lifetime to configuration
- use Go naming conventions for the path params
- store plaintext token rather than hash
- remove openid table sqllite mutex
* Add default OpenID token lifetime (#599)
* Update dendrite-config.yaml
Co-authored-by: Kegsay <kegsay@gmail.com>
Co-authored-by: Kegsay <kegan@matrix.org>
* Use default transport for AS traffic
* Update gmsl and use default client
* Remove replace
* Fix go.sum
* Update gomatrixserverlib
* Go back to appservices managing their own HTTP clients because argh
* Add missing context
* Tweak AS registration check
* Check appservice usernames using correct function
* Update sytest-whitelist
* Use gomatrixserverlib.Client since that allows us to disable TLS validation using the config
* Add appservice-specific client and ability to control TLS validation for appservices only
* Set timeout on appservice client
* Review comments
* Remove dead code
* Enforce LoginTypeApplicationService after all
* Check correct auth type field
* Allow configuring DNS cache
* Update sample configs
* Fix build errors
* Fix time resolution
* Default 5m
* In seconds
* Use WithDNScache
* Correct field name
* Update go.mod/go.sum to matrix-org/gomatrixserverlib#251
