Win32: change pointstyle

[Bastian M. <bma...@we...>]

This patch aims to increase consistency between the windows
terminal and other terminals:
The order of the pointstyles is changed. It is now the same
as in gd.trm, pdf.trm, post.trm and possibly others.
And default colors are now taken from web_color_rgbs[], as
do gd.trm and pdf.trm. Btw. terminals are not very consistent
here: gd.trm uses all web colors, pdf only the first 12
and postscript uses 9 or so. win.trm uses 15 different colors ...

Bastian

--=20
Bastian M=E4rkisch
Physikalisches Institut, Universit=E4t Heidelberg