and add some (non-functional) menus to the graphics window. Start
to rough in some data structures to hold the sketch. No real work
yet, though.
[git-p4: depot-paths = "//depot/solvespace/": change = 1653]
constraint solver drawing. I've started work on the user inteface,
which will be based around two windows: one with the graphical
sketch, and one command line. I've started to implement the command
line, no other work.
[git-p4: depot-paths = "//depot/solvespace/": change = 1652]