The lowest offset of CRYPTO frames in a QUIC packet does not necessarily start at zero, such as the second packet of a connection using Kyber key in the client hello.
Also updates clienthellod to new repo.
Patch MaybePackProbePacket to also generate the initial packet based on the QUIC spec if set. This fixes the incorrect behavior observed on automatic retry on timeout (sending probe packet), where uquic was inccorectly sending the default frames (PADDING, CRYPTO) instead of specified frames by QUIC spec.
Signed-off-by: Gaukas Wang <i@gaukas.wang>
Add variable length QUIC frame padding support. Refactor how QUIC frames are defined in a QUIC Spec. Update documentation and examples. Added Chrome and Firefox parrots.
Close#3.
