Basic Textures and reciepes

I just thought I'd create a pull request so you could see what i'm working on, to avoid wasting time/ effort working on the same things.

for now, I just created a few basic textures, and added a way to craft the pestle and the basic dust item/block.
I had made the plantball/pestle textures before you pushed them to your repo, and thought you might like them better.

BTW, why does GitHub show unchanged lines as deleted and added?