New port: sysutils/fcode-utils

A set of utilities to process FCODE, OpenFirmware's byte code. This
includes:

• the tokenizer toke,
• the detokenizer detok,
• and a PCI rom header utility.

WWW: https://www.openfirmware.info/FCODE_suite

PR: 213114
Submitted by: Piotr Kubaj <pkubaj@anongoth.pl> (based on)
Reviewed by: pawel