wielded candles vs rust (trunk only)

wielded candles vs rust (trunk only)

     From a bug report: [ slashem-Bugs-1206099 ] Torches are not extinguished with rust traps).
A rust trap that hits the torso candles causes all lit objects being carried
to be extinguished, but one which hit the weapon arm didn't have same affect
on a wielded light.  This fix causes wielded candles or lamps (not Sunsword)
to go out if affected by any rust, such as hitting a rust monster with one,
rather than use his patch that just handled the trap case.  It also excludes
wielded lights from the existing torso splash since having them be hit by
both instances is too obviously buggy.

     I think brass lanterns ought to be exempt from being extinguished by
water (at least splashing which is less drastic than total submersion) since
there are references to them operating by batteries rather than fire, but I
didn't want to track all the places which would be affected.