[Groff] groff special PS fonts

[Michail Vidiassov]

Dear Werner,

concerning groff-special PS fonts FreeEuro, Symbol-Slanted and 
ZapfDingbats-Reverse.

1) Why afm files are not installed in devps folder?
   If someone uses the fonts, having corresponding afms
   around  would be nice.
2) pfa files for SS and ZDR lack %%EndComments comment,
   mentioned in grops(1).
3) in zapfdr.afm, have you changed UniqueID and FullName
   from original zapfd.afm file?

            Sincerely, Michail