This commit adds the Nightshift lighting mode from /tg/. From 19:00 to
07:00 in station time, the station will go into a reduced-lighting mode,
with dimmed lights across the station.
In conjunction with this, there is a new configuration option to start
the shift time at a random time other than 12:00, so that players are
more likely to experience a night shift (as opposed to having to have a
7 hour round).
make environment_smash into bitflags
add obj_damage for simple animals
make default max_integrity and obj_integrity INFINITY for non-defined objects, until we can move more objects to obj_integrity/take_damage() system
adds examining objects to roughly check damage
more obj_defense.dm procs
tables can be attacked with items, glass tables have a narsie_act()
fixes, changes to make it compile
adds armor to many objects
re-adds the clockcult floor sprite (accidentally removed in another PR)
adds clockcult effects to the clockcult floor
adds clockcult grilles
adds var/broken to /obj/structure
adds unused resistance_flags var
moves burn_state and resistance_flags to flags.dm
more updates to attack code
updated obj_defense.dm procs
renames take_damage() for organs to receive_damage()
renames Deconstruct() to deconstruct() for atmos objects
obj_integrity, max_integrity, integrity_failure vars moved to /obj level, obj_integrity = max_integrity on New()
moves proc/deconstruct() and proc/take_damage() to obj level, moves a few obj damage procs in with it to new obj_defense.dm
moves plastic flaps to new plasticflaps.dm
