Changes names for some medieval armor things and tweaks weights a bit.

Compromise on names that don't require SCA history lessons to decipher,
plus a bit of extra internet research shows that the armor was indeed a
little on the heavy side.
Ornamental armor weight is now 18 kg.
Grammar alteration to make the soldering/low-batteries message more clear.
Survivor gear accessories: helmet, boots, and gloves!
Tweak.
Tweak.
Tweak.
Winter survivor suit!
Tweak.
Tweak.
Tweak.
Tweak.
Fixes a text mixup in snippets.json!
Pull road-based vehicle spawning into a single function
Die, car chassis! You don't belong in this world.
Removes tungsten alloy from 5x50 dart's description.
Replaces knife tool segments with 'CUT' tag segment!
Alters pneumatic bolt driver's reload time to be more in-line with the other pneumatic weapon.
Set to 500 reload time.
Remove unused function.