Added MagnetBound
Changes from MagnetBound:
-Added Magnetizer
-Magnets now push magnetized monsters
-Added magnets.lua for applying force on entities
-You might want to unequip your magnetize tech if you have it before loading a game
Merge branch 'dev' into dev-magnets
added energy.die() into object die() hooks
fixed bug in energy.lua
removed collision from projectiles
tweaked connection check frequency
not actually sure what i changed
WIP batteries and chargers
initial implementation of batteries and chargers. they charge.
perform LoS checks on every pulse (#14)