After the changes to LibGfx to make default font management handled in
WindowServer instead of each GUI application to allow for global font
broadcasts, the two LibGfx tests broke. The non-benchmark was fixed in
8f96d2, but the benchmark was left in the dust because nobody really
runs it manually :^(
With the goal of centralizing all tests in the system, this is a
first step to establish a Tests sub-tree. It will contain all of
the unit tests and test harnesses for the various components in the
system.