* Implements a Demolition Modifier variable to items, affects damage vs structures and robots. (#66967)
Adds a modifier variable which can be used to increase or decrease a given items damage to structures, machinery, vehicles, and robots (including cyborgs, simple-bots, and anything else with the MOB_ROBOTIC biotype)
* Fixes attacks on mech equipment ignoring armor / melee damage, also fixes mech equipment not being disabled at 0% health, also also unit tests mech armor (#67411)
Co-authored-by: itseasytosee <55666666+itseasytosee@users.noreply.github.com>
Co-authored-by: MrMelbert <51863163+MrMelbert@users.noreply.github.com>
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