Add console escape sequences to draw headings

src/hulk/pci.d

@@ -347,7 +347,7 @@ struct Pci
 
     public static void initialize()
     {
-        Klog.writefln("Scanning PCI devices...");
+        Klog.writefln("\a3Initializing PCI Bus");
         size_t n_sgma_descs = Acpi.mcfg.n_sgma_descs;
         for (size_t i = 0u; i < n_sgma_descs; i++)
         {
@@ -367,6 +367,5 @@ struct Pci
                 }
             }
         }
-        Klog.writefln("PCI scan complete.");
     }
 }