* Refactor: remove `scopes` from CentrifugeSrv, remove dependencies on window/config/user context
* Refactor: add GrafanaLiveChannelConfigService to wrap direct access to *Scope classes
* Refactor: added GrafanaLiveService acting like a proxy to GrafanaLiveSrv + LiveChannelConfigSrv
* Refactor: live module instantiation
* Refactor: import fixes
* Fix: URL construction in centrifugeSrv
