[ANNOUNCE] Kconfiglib GUI menuconfig

[Ulf Magnusson]

Hello,

Kconfiglib (https://github.com/ulfalizer/Kconfiglib) now has a
Tkinter-based guiconfig.py in addition to the curses-based
menuconfig.py. It has been tested on Linux, Windows, and macOS.

See https://github.com/ulfalizer/Kconfiglib#menuconfig-interfaces for
a screenshot (with show-all mode on). The interface is inspired by
qconfig.

The images come from data embedded directly in guiconfig.py by
default, to avoid having to carry around a bunch of separate .gif
files.

makefile.patch now has a new 'guiconfig' target for trying out the GUI
menuconfig on the Linux kernel. Python 2 is used by default. Run 'make
PYTHONCMD=python3 guiconfig' to use Python 3.

Please tell me if you try it out and spot any issues or annoyances. :)

Cheers,
Ulf