feat: wi-fi - join WPA2/WPA3-PSK networks and carry traffic like ethernet

tests/wifi/shim/Pci/Pci.hpp

@@ -0,0 +1,4 @@
+#pragma once
+#include <cstdint>
+// Only the type name is needed: the MLME never touches PCI.
+namespace Pci { struct PciDevice { uint8_t Bus, Device, Function; }; }