wip/libs-gui 0_28_0 NetBSD

The GNUstep gui library is a library of graphical user interface classes written completely in the Objective-C language; the classes are based upon Apple's Cocoa framwork (which came from the OpenStep specification). These classes include graphical objects such as buttons, text fields, popup lists, browser lists, and windows; there are also many associated classes for handling events, colors, fonts, pasteboards and images.