part 1 touches core files
ntconf.h changes differ slightly from Yitzhak's original.
Makes Borland happy with current sources.
Hides "rawio" on Graphical Port which doesn't do anything with rawio
This was caused by character set incompatibility between message and map
windows. Apparently, Nethack is using IBM character set (CP 437) but fonts
were create for Windows ANSI codepage. I fixed most of it by changing
character set of the fonts except for the Rogue level. I had to make changes
to src/drawing.c for Rogue level since most of Windows fonts are not capable
of displaying control characters (char. code<0x20)
And of course, disabling IBMGraphics option fixes it all.
