Ticket: 4967

The format of initial packet for quic ietf, ie quic v1,
is described in rfc 9000, section 17.2.2

so that we can use new functions in quic parser

and logs interesting extensions from crypto frame

As it can be 4, but it can also be 1, based on the first
decrypted byte

The way to determine if the payload is encrypted is by storing
in the state if we have seen a crypto frame in both directions...

So as to keep parse not too big

for detection

Ticket: 5143