Reassign layers throughout armor.json

Also performed a bit of trailing whitespace cleanup.


Specific changes:

* kevlar vest to SKINTIGHT: claims to be "suitable for wearing under clothing". Not sure if convinced yet.
* leather vest to OUTER: it's a big vest.
* medical gloves to SKINTIGHT: obvious
* two-by-arm/shin guards, etc. to BELTED: their descriptions say it: bits of wood/metal strapped onto the arms/legs.
* chest rig to BELTED: worn _over_ stuff to give quick access to what's on it.
* MBR vests to BELTED: they're also worn over stuff and very adjustable.
* housecoat to OUTER
* leather apron to BELTED
* wool poncho to OUTER
* chefs jacket renamed to chef's jacket and moved to OUTER
* army jacket to OUTER
* fencing jacket to OUTER
* light jacket to OUTER
* jean jacket to OUTER
* flannel jacket to OUTER
* leather jacket to OUTER
* red leather jacket to OUTER, like regular one.
* football armor to BELTED: it straps on
* mouthpiece and dental grills to SKINTIGHT: they're in your mouth! It doesn't get tighter than that.
* camisole to SKINTIGHT: even the description says so.
* wolf suit, clown suit, dino suit to OUTER
* bondage suit to SKINTIGHT: it really sounds like it.
* leather corset to SKINTIGHT: sounds like it, too.
* beekeeping suit and hood to OUTER
* ornamental plate armor to OUTER: matches the non-ornamental one.
* plate armor gets STURDY: it's the non-ornamental kind.
* loincloths and foot rags to SKINTIGHT: usually, they're the only thing you wear 'cause you have nothing else, and the foot rags, in particular, should layer with shoes.
* utility vest to BELTED: like the chest rig.
* balaclava to SKINTIGHT
* leather belt to normal: The BELTED layer is for things strapped onto the side of your body. Belts aren't. The layer is mis-named.
* american flag to OUTER
* cloaks get VARSIZE: they're such a nice thing to have, but the encumbrance hurts a lot. Kind of a judgement call, but this is the way I'd prefer it.
* arm and leg splints to OUTER: could also have picked BELTED, but this works.
* scrap suit to OUTER
* bookplate to BELTED: same general reasoning as the MBR vest/chest rig.
* cat ears and tail: added FANCY, as that's literally their only reason for existing.
* leather collar: likewise.
* Thriller's clothing: also added FANCY -- that's some nice stuff!

Many thanks to Dragoonseal from IRC for pointing these out and sticking with me as we went through all the things.