Notifications + Random Stuff

Adds sound notifications for Ninja and Wizard Apprentice spawning -- hopefully means fewer afk antags.

Adds a ghostnotice span class, used in the new notify_ghosts proc. Upon creation, things that require ghostly attention (NarSie, golem runes) give more visible messages to the dead.

Retires the 'moderate' span class, which was only used in tomato throwing? Refactors tomato code (this ended up being the meat of this PR, somehow...)

Reorganizes some item definition/procs.