Build original Ada port core, V client, and x86-64 boot milestone

boot/grub.cfg

@@ -0,0 +1,8 @@
+set timeout=0
+set default=0
+serial --unit=0 --speed=38400
+terminal_output serial
+menuentry "Open Agila Ada boot milestone" {
+ multiboot /boot/open-agila.elf
+ boot
+}