wip/flwm 1.16nb4 NetBSD

Flwm is an attempt to combine the best ideas seen in several window managers. The primary influence and code base is from wm2 by Chris Cannam.

Primary features are:

 \* Nifty sideways titlebars.
 \* No icons. You deiconize by picking off a pop-up menu. This means no
   space is wasted by icons.
 \* The same pop-up menu controls multiple desktops and lets you launch
   programs.
 \* Occupies as little screen space as possible. The border and titles are
   as thin as I could possibly make them. And maximized windows waste
   zero pixels vertically!
 \* Independent maximize buttons for width & height.
 \* Understands Motif, KDE, and Gnome window manager hints, and works with
   SGI programs that assumme 4DWM.
 \* Really small and fast code.