Multiplayer SDK 1.2.0

Custom inspector for `.gsh` files.

Removed error logging for unknown Lobby patch paths over Wire to support future Distributed Authority state updates.

Fixed assets being loaded despite being of the incorrect type.

Fixed stale data used when deploying `.gsh` files via the deployment window.

Resolved an issue where the `Task` would resolve before the `NetworkManager` was fully connected and synchronized when using Netcode for GameObjects.

Resolved an issue where the `Task` would resolve before the `NetworkManager` had finished shutting down when using Netcode for GameObjects.

Resolved an issue where some settings on the `NetworkManager` would stay changed after leaving a Distributed Authority session.

Fixed an issue where joining clients to a relay hosted game (either with Relay or Distributed Authority) would not be able to connect because the relay protocol is invalid for their platform. The `RelayProtocol` from the `_session_network` property is now ignored by joining and reconnecting players. Players always use the `RelayProtocol.Default` value instead.