Rust version/branch

[danimesq]

IPFS is creating Rust versions. Simple as ipfs-lite is, it can prove how IPFS would be fully on Rust.

[hsanjuan]

I'd like to see ipfs implementations in many languages, but this falls a bit outside of the scope of this project. Note that ipfs-lite is simple but, although it uses a minimal feature set, it still relies on a lot of complexity contained in the libraries it puts together (dht, bitswap, merkledag), and I'm not sure what the state of those is in Rust.