Ported all Phase 2 message types from C implementation to VC2022:
- SessionSetupReq/Res with EVCCID and EVSEID handling
- ServiceDiscoveryReq/Res with payment options and services
- AuthorizationReq/Res with ID and challenge processing
- ChargeParameterDiscoveryReq/Res with DC parameters
Maintains VC2022 coding style (no emoji indicators) while providing
comprehensive parameter parsing and display for all message types
including complex nested structures and optional fields.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>