some success with adding VGA to FreeMWare

[Kevin P. Lawton]

I grafted the VGA emulation (and some other necessary framework) from
bochs to FreeMWare.  The keyboard emulation and GUI code had to
come with it.

I still haven't chased down a bug.  The updates are flaky yet.
As soon as I get it working I'll pass on the source.

Only text mode will work for now.  Graphics planar mode will
take real virtualization of the memory mapped video address space.


-Kevin