feat: refactored some pci code and added pretty print of classes

kernel/drivers/pci.h

@@ -90,7 +90,9 @@ typedef struct pci_driver {
     uint8_t pci_class;
     uint8_t pci_subclass;
     struct {
-        uint8_t pci_use_subclass: 1;
+        bool pci_use_subclass: 1;
+        bool validatable: 1;
+        bool initialisable: 1;
     };
     pci_driver_validate validate;
     pci_driver_initialize initialize;
@@ -190,6 +192,12 @@ void pci_print_info();
 
 void pci_dump_caps();
 
+#ifdef ENABLE_PCIPP
+
+void pci_pretty_print();
+
+#endif
+
 uint32_t pci_register_driver(const pci_driver *pci_driver);
 
 void pci_sort_drivers();