Delete custom PDF417 generator and renderer now that all components use zxing-wasm/writer. Removes Pdf417Barcode component, generateBarcode, and renderBarcode utilities.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Implements PDF417 2D barcode encoder with bcmath utilities and lookup tables.
Ported from TCPDF library to TypeScript for client-side barcode generation.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>