Minor update

Some new Smith stuff.
Some long coats can now hide stats from the lower body slot.
You can no longer open, carry or stash outerwear if it's enabling a concealed item slot.
– But only if you have something equipped in that slot, and only if the outerwear is critical.
Item hovers now show how much storage they use.
Made some performance improvements.
Fixed and tweaked some things to do with the new clothing system.
Fixed Courier drop sometimes being blank.
Fixed some other minor bugs and typos; thanks for the reports!