Added a GUI version of the home layout.

The home layout can now be drawn to the screen to visualize what is
happening. Each cell is outlined in black and is a different color based
on the surface type. The surface will also be slightly darker if it
contains dirt, the darker, the more dirt there is.
Revert "Added a GUI version of the home layout."

This reverts commit 1f9a1e6feaa8bf6bfd4f790534c7932d15977c6e.