Implement binary tree #32
Description
- https://eips.ethereum.org/EIPS/eip-7864
- https://github.com/ethereumjs/ethereumjs-monorepo/tree/master/packages/binarytree
- https://oxlib.sh/api/BinaryStateTree
We've already implemented Verkle but seems like it won't be used. So better to delay this until some assurances on inclusion are seen.