Migrate Perl CANfigurator Parsers To Rust

[coderask]

Summary

Replace all six Perl CANdo parsers with a single Rust binary (canfigurator) that reads GRCAN.CANdo once via serde_yaml and emits every generated artifact in one pass.

Stack

This PR is stacked on:

• Normalize CANdo bit_start Ranges To Plain Integers #550 — Normalize bit_start ranges to plain integers
• Remove Thousands Separators From CANdo Numeric Values #551 — Remove thousands separators from numeric values
• Normalize CANdo Dash Placeholders To YAML Null #552 — Normalize dash placeholders to YAML null

Those PRs clean up CANdo format quirks so the Rust parser targets a consistent YAML schema.

What This Replaces

Perl Parser	Output
BusParser.pl (151 lines)	GRCAN_BUS_ID.h
GRparser.pl (224 lines)	GRCAN_NODE_ID.h
MSGparser.pl (129 lines)	GRCAN_MSG_ID.h
CANparser.pl (241 lines)	GRCAN_CUSTOM_ID.h
STRUCTparser.pl (370 lines)	GRCAN_MSG_DATA.h
DBCparser.pl (943 lines)	GRCAN_{Bus}.dbc × 3

Total: 2,058 lines of Perl → single Rust binary

Approach

1. Parse GRCAN.CANdo with serde_yaml into typed Rust structs
2. Validate (duplicate detection, DLC ranges, routing consistency) — solves Autogen And GRCAN.CANdo Lack Testing #375 and GRparser.pl Has No Duplicate Checking #373
3. Emit byte-identical output to current Perl parsers (verified by golden-file tests)
4. Run in parallel CI alongside Perl, then cut over

Status

🚧 Draft — work in progress