First pass at getting Acadia running under bochs.

- Create a bochs build script.
- Properly configure COM1

zion/zion.cpp

@@ -20,6 +20,7 @@
 #include "syscall/syscall.h"
 
 extern "C" void zion() {
+  serial::initialize(9600);
   dbgln("[boot] Init GDT & IDT.");
   InitGdt();
   InitIdt();