Update NetworkSpawner: support singletons

Update README.md

Update Lobby: use NetworkSpawner

Update NetworkSpawner: add logging

Update NetworkSpawner: track despawned objects

Add NetworkSpawner prototype

Fix Player Initialization

Fix LobbyPlayer initialization

Add NetworkingExtensions

Create Game.Services.Network asmdef

Refactor InitialScope: add RootScope

Register GameState

Add VContainerSettings

Fix namespaces in asmdefs

Create Services asmdef