Implemented a user interface for loading and unloading modules during runtime

This is very similar to the /sys filesystem. To unload the module "sample" for
example you simply execute 'echo sample > sys/unloadmodule'. To load 'modules/sample.so'
you simply execute 'echo modules/sample.so > sys/loadmodule', etc.

Signed-off-by: Toon Schoenmakers <nighteyes1993@gmail.com>