Adds a chem recipe for paper to ash

[Wraithcraft]

Can you still use paper in smoke?

Pretty sure stable smoke activation is +100, so yeah.

As for amount, I'd rather have it at 1:1 for beaker heating. Right now you get 1:1 with burning paper, and nobody has made a fuss. At most I'd say drop burning to give 5 ash per sheet instead of 10, so that the lab method is more efficient.

Hrm. It makes sense to be able to collect more ash from a paper burned in a beaker than scooping ash up on the ground. On it!