features for analysis tools

[joe-saronic]

1. Adds a tap for raw bytes for inspection and recording on the parser and reader. This allows a recorder to operate in parallel with a filter.
2. Serializable messages for human readable output via JSONL. serde operates with alloc and no_std just like most of the base crate, so nothing of value is lost.

Both features are intended to parallel what is already in liban-rs

[Copilot]

Pull request overview

This PR adds a way to access the raw bytes for the most recently parsed SBF message, exposed both on the streaming SbfReader and on the underlying SbfParser, primarily to support inspection/recording use cases.

Changes:

• Extend the parser to retain the raw bytes for the last successfully parsed message and expose them via last_raw_bytes().
• Expose the same capability on SbfReader and document how to use it safely with iteration (preferring while let over for).
• Add tests to ensure skipped noise bytes are not included in the captured raw bytes; bump crate version to 0.18.0.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/reader.rs	Adds SbfReader::last_raw_bytes() with usage docs and a test validating capture excludes skipped garbage between frames.
src/parser.rs	Tracks last parsed frame bytes in SbfParser (last_raw) and adds last_raw_bytes() plus a test ensuring skipped noise isn’t captured.
Cargo.toml	Bumps crate version from 0.17.0 to 0.18.0.

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