Implement a print routine

We now have a print routine and call that once notos is ready. I'm currently
at school so this was the only possible thing to do at the moment because my
ACPI sources are at home. However, this is an i686 and I apparently managed
to cross-compile and run notos here.

In character, the print routine is fairly dumb as it does not allow newlines
or moves the cursor forward. It needs x/y coordinates to print to using the
video memory. But it's enough for now.