Squashed armalis/vox commits and human icon update commits:
Armalis gear and mob icons, plus sonic cannon.
Added sonic cannon skeleton code.
Noise cannon fire sound, Vox shriek sound.
Added Vox Armalis species.
Swapped vox breath mask over to species_restricted check.
Added Vox Armalis gear.
Added a random shriek effect to Vox and Vox Armalis speech.
Added quickspawn Vox Armalis definition.
Vox shriek sound effect. Thought I committed this earlier.
Added r_hand and l_hand icon_overwrite checks.
More work on Armalis. Added gut() and leap() human procs.
Adding/fixing up the leap() and gut() verbs, and a LEAPING status_flag for human/Bump().
Fixing some missing pixels in the armalis tail.
Almost forgot to whitelist armalis...
Split vox and vox armalis icons up into their own files. Set up species-level sprite files for vox and vox armalis. Removed icons/mob/vox.dmi.
Added species.sprite_sheets[] checks to human icon_update proc.
Fixing a bug with leap() and gut()
Fixes another drone runtime, fff.
Merge pull request #4999 from Zuhayr/dev

Modifies vox armalis and vox items and sprites, adds species-specific sprite sheet system.