Scan for PCI devices

src/hulk/hulk.d

@@ -12,6 +12,7 @@ import hulk.kfont;
 import hulk.klog;
 import hulk.hurl;
 import hulk.hippo;
+import hulk.pci;
 
 extern extern(C) __gshared ubyte _hulk_total_size;
 
@@ -38,6 +39,7 @@ void hulk_start()
     klog.writefln("Welcome to HULK, the HOS UltraLight Kernel!");
 
     hippo.initialize(&hulk_header);
+    pci.initialize();
 
     for (;;)
     {