[Setools] Yet another diagram tool

[Balázs Kósi]

Hi,

> > > Comparing to gnuplot, it uses objects for creating diagrams, not literal numbers
> > I have seen it, but my guess is that it is for VisualWorks, not Squeak.

Lukas Renggli started to port EyeSee [1], but the latest snapshot's
(EyeSee-lr.3.mcz) comment says:
	- some fixes .. very far from working, but most tests pass
So I think, we could write a gnuplot wrapper using ideas from EyeSee.

[1] http://source.lukas-renggli.ch/mondrian.html

Balázs