Implement turn server settings

Merged Moritz Bitsch requested to merge madmo1/conduit:feature/turn-server-settings into next
  • I agree to release my code and all other changes of this MR under the Apache-2.0 license

This merge request adds config variables to configure /_matrix/client/r0/voip/turnServer.

Both static user/password and time based dynamic user/password with shared secret are supported.

Fixes: #97 (closed)

Edited by Moritz Bitsch