Alexander Huszagh

Sounds good this seems like a very doable request so I'll put it as an enhancement after our release later this week.

I'm making serious progress on this, sorry for the delay but we have most of the base logic and then we can implement the parsing logic quite easily into this.

I've got the higher order integers, which I needed to optimize from other big integer implementations [here](https://github.com/Alexhuszagh/i256-rs). It's got very efficient multiplication and division, especially with [scalars](https://docs.rs/i256/latest/i256/struct.U256.html#method.wrapping_mul_ulimb), which since we'll...