- Implement `encoded_len` for packet enums.
- Fix bug in `has_next_packet` causing a later `unwrap` to panic.
- Add robust `encoded_len` check in `PacketEncoder` for debug builds.
- Split packet inspector regex into separate "inclusive" and "exclusive"
arguments because the `regex` crate does not support negative lookahead.
- Better `Debug` impls for `Ident` and `Compound`.
- Remove read/write timeouts from packet inspector.