pull terminfo code out of windows build

[dankamongmen]

from what i can tell, terminfo isn't much of a thing on windows (@magiblot seconds this). i certainly haven't seen it work even through setupterm(). i think we ought just purge it from the windows build and assume windows terminal [shrug].

[dankamongmen]

I've confirmed that it is indeed a failing call to setupterm() that is killing most of our Windows binaries out of the gate.

[dankamongmen]

and now we even print an error to that effect by default, huzzah.

[dankamongmen]

I've removed the calls to setupterm() and termname(). Indeed, on Windows we're no longer including ncurses.h. As expected we now hit "Required terminfo capability cup not defined", and exit with failure. That's no surprise at all. We now need to hardcode the various Windows Terminal escapes. We're almost there.