Upgrade 1.6 -> 1.7

Multi-Room Simulators — Removed

Starting from 1.7.0, Multi-Room Simulators have been removed from the SDK. If your project was using this feature, you will no longer be able to work with it.

Note that CoherenceScene and CoherenceSceneLoader — the core components that allow Multi-Room Simulators — are not deprecated. You can read more about them on Multiple Connections within a Game Instance.