Ports drone internal storage to slot system
Adds hat/mask slot to drones
Adds default_storage and default_hatmask vars which allow future child classes to have default hats and internal storage items easily
Adds drone_type var to drone shells for the same reason
Fixes a bug where cannibalized drones would gib
Moves drone hud code to its own file
Adds new Syndrone, a maintenance drone modified by the synditate to destroy the station
Allows all mobs to use uplinks
Fixes bad_items not working, moves bad_items to a var for easy override
Merge pull request #5 from JJRcop/drones-hats

Drone thingsssssssss