Implements primitive cotton industry.

Adding even more self-sufficiency.

New recipes.
Cotton seeds.
Cotton farming.
Cotton bolls.
Carding paddles.
Cotton cleaning.
Cotton balls.
Distaves and spindles.
Cotton spinning.
Knitting needles.
Knitting.

Fixes https://github.com/CleverRaven/Cataclysm-DDA/issues/7701.