ldconfig.ldr - need magnet material

[Steffen]

thanks for the compromise, happy to hear that!

the primary goal for me here is getting a unique color code.
that will allow me to fine-tune the appearance in renders.
for ldconfig.ldr, a rough first approximation would be sufficient IMHO,
as we can improve this easily in later iterations.
I'm not requesting a syntax extension of ldconfig.ldr here, just a color code.

having that color code will allow us to let these
http://www.ldraw.org/cgi-bin/ptdetail.cg...499c01.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg...959c01.dat
leave the PT finally.

also, the official file s\735s01.dat will use that new color code.