Returns true when a client's connection has been set to ready.
A client that is ready recieves state updates from the server, while a client that is not ready does not. This useful when the state of the game is not normal, such as a Scene change or end-of-game.
This is read-only. To change the ready state of a client, use ClientScene.Ready(). The server is able to set the ready state of clients using NetworkServer.SetClientReady(), NetworkServer.SetClientNotReady() and NetworkServer.SetAllClientsNotReady().
This is done when changing Scenes so that clients don't receive state update messages during Scene loading.