In scandium client Queued Messages are not handled when ServerHelloDone message arrives

[yunus]

When messages are out of order, they are queued. Assume that in Flight 4, ServerKeyExchange is lost, and CertificateRequest arrives out of order. Later, when ServerKeyExchange arrives with ServerHelloDone in a retransmission of the whole flight, Scandium does not go through the QueuedMessages before handling ServerHelloDone.

As a result, Scandium thinks that there was no certificateRequest, so this is a PSK based session.

So the solution should be emptying the QueuedMessages before handling the ServerHelloDone.