Standalone firmware decryption tool

[EIREXE]

A command-line tool, preferably also as a rust library that allows the firmware to be decrypted.

• Fanatec uses win32 to decrypt the firmware, using a cross-platform library would be preferable for folks stuck on Linux
• The program MUST NOT bundle the key, that would be a copyright violation, instead we should extract the key from the binary (the key is at 0x1585F0 in FwClubSportBaseUpdater.exe, and it's 16 characters long).
• The output files are plan text intel hex files, in case you are wondering

[EIREXE]

VLFX is the tool to do the job: https://github.com/ProjectSerotonin/vlfx

The tool ended up needing the Win32 API because it uses windows's proprietary salting algorithm.