Log version negotiation frame

Currently, Quiche does not log received version negotiation frames to qlog. Since the default wire version of quiche is `babababa`, it might cause some confusion if a user is checking the qlog of quiche-client.

Start by tracing how received QUIC frames are represented and logged to qlog, using quiche-client output as the observable entry point. Compare version negotiation handling with the existing logged frame types; done means a received version negotiation frame appears in the client qlog without causing confusion about the wire version.

Written by the indexing model from the issue text.