USB-PD Cable Data Decoder and Checker

Field definitions and bit layouts follow the USB Power Delivery Specification R3.2 (VDOs, ID Header, Cert Stat, Product and Cable VDOs) and USB Type-C Cable and Connector Specification R2.4 (TBT3 / SVID 0x8087 cable mode). Defaults captured from the Anker 40Gbps cable. Vendor names come from the USB-IF Vendor ID database; XID lookups resolve against the USB-IF certified-products registry.