testing/idesk: new aport

IDesk gives users icons on their desktop. Features include transparency, configurable actions to run shell commands, PNG, SVG and GIF image support, and XFT anti-aliased fonts.

http://idesk.sourceforge.net/html/index.html

This package can be useful when implementing icons with light window managers, such as jwm, openbox or flwm. It could be also done with a file manager, but sometimes that can be too heavyweight.