make bananium smeltable

exactly as the title says, though, the smelter menu calls it 'clown',
because the oretag is clown, didn't fix it, because i dont know what
things use the oretag variable(i know some), and didn't want to break
anything over such a small bug
RCSses can send crates

simple copy paste of the code for closets
Merge pull request #423 from PJB3005/master

bananium smeltable and RCSses can send crates