The libt3window library provides functions for manipulating the terminal
and for creating (possibly overlapping) windows on a terminal. libt3window
can be used instead of (n)curses for drawing on the terminal. libt3window
provides the following features:

o  (Overlapping) windows for drawing. Overlapping windows hide windows
   deeper in the window stack.
o  Clipping of windows to the size of the parent window.
o  UTF-8 used internally, which is converted to the terminal encoding
   before output. libt3window depends on libunistring for UTF-8 processing
   and libtranscript for character set conversion.
o  Provides easy access to the most needed terminal functionality.
o  Small code size.
