mangohud doesn't handle a compressed pci.ids.gz database

[Apteryks]

pciutils has a supported build configuration to use a compressed database (by setting the ZLIB Make variable to yes) which is used for example on Guix System. Unfortunately mangohud expects an uncompressed database.

After a summary investigation, it appears to me that using the pciutils library (libpci.so) to parse the IDs would solve this problem while reducing the amout of custom coded that accomplishes something similar in pci_ids.cpp.