Scarves

Moved the scarves from armor.json to tool_armor.json.

Added simple patchwork scarf and long patchwork scarf. Not as warm as knit scarves. They're autolearn and take 0 skill, so you can craft them right from the start as an option to keep your mouth from freezing before you get access to crafting balaclavas.

Added recipes for patchwork scarves.

Reduced warmth of knit scarves by 10 to differentiate them from wool scarves. It puts them inbetween patchwork and wool scarves in terms of warmth.

Raised coverage of knit scarves to 85 to normalize their coverage with the rest of the scarves.

Raised the warmth and environmental protection of fur scarves a tad, to incentivise their use and because it makes sense.

Lowered the material thickness on the long fur scarf to be equal to the normal fur scarf.

Added ability to [a]ctivate all scarves, to wear them more loosely or tighten them back to normal. When worn loosely their warmth, coverage, and environmental protection are all halved.

(When you activate them the change in warmth won't be visable in the armor layer or character screens until you pass a turn in the game. Thermal clothing does the same thing. Not exactly an issue, but seemed noteworthy.)

Thoughts or concerns? Any glaring issues?