[MERGED PR] Makes specific antag garb acid immune(wizards excluded)

[Chickenish]

~snip~
Though I suppose this is a decent stop gap, because it is shit how acid basically silently destroys a mask or helmet instantly.

Yes, this is supposed to be a stop gap; when someone makes a better version, said person could search for stuff with the flag for a quick list of stuff to buff.
Something that repairs items could be cool, so that scratch damage from acid or fire wouldn't inevitably kill it.