Minor updates to the unfinished SideShow demo for clarity.

Added unfinished MassStorageHost class driver demo.

Change Doxygen configuration files to not produce 4096 directories for the documentation files -- the LUFA components do not generate enough documentation files to justify the large performance hit of creating so many directories.

Fix missing Doxygen documentation in the Class Driver Mass Storage Device demo.

Better documentation for the MissleLauncher project - add credit to PyLauncher project.

Seperated out OTG, Device and Host mode demos into seperate folders for clarity. Adjusted makefiles so that the path to the LUFA library can be set in one place.