Hats & luggage pricing

Movin' on up through armor.json.

Made some judgment calls on the hats because (for instance) a top hat
can go for anywhere from $10 to $278 depending on material, maker, and
whether we want a peacock feather in it.

(SUPER_FANCY argues for the feather.)
Up through berets

Movin' on up.
Nomex in progress

Gonna PR these; still moving.
Firefighter gear priced

Moving the sticks...
Hats here!

Wanna buy a hat?
through glasses

OK, as good a stopping point as any.  Optical glasses were derived from
2-for-X pricing, midgrade.
Survivor pack rework

Added survivor runner pack and duffel bag.
Removed varsize from all survivor packs.
Tweaked volume so all survivor packs are 25% bigger than non-survivor counterparts.
Recipies

Added survivor runner pack and duffel bag recipes
Tweaked existing survivor pack recipes
MOLLE pack nerf and survivor pack weight tweaks

MOLLE packs were obviously overpowered; they now have the same volume as a survivor backpack, 48.

Tweaked the weight of all the survivor packs so they follow a nice linear progression; larger packs are heavier, smaller packs are lighter.
Added spawns and tweaked existing survivor pack spawnrates
Minor survivor backpack/rucksack storage tweak

Originally got my math embarrassingly wrong, this fixes that.
Merge pull request #7813 from Izicata/patch-2

Survivor Pack Standardization
Merge pull request #7811 from KA101/pricecheck

Armor.json, price check
Removes unnecessary poor taste from razor blade's item description.
Merge pull request #7815 from Rivet-the-Zombie/razorblade-text-tweak

Removes unnecessary poor taste from razor blade's item description.