Custom items

Added custom item defines for the following ckeys:
icecreamandhoney
thebujinkan
chigarnett
sandcom
grolarg

Also included their ckeys, character names, and item paths in
custom_items.txt in config\example. If this file is simply copied over
to the main config folder, people will be able to actually spawn in with
their items rather than having to ask admins for them. (This has been
tested and found to work flawlessly.)