implement efficient streaming apis

[dignifiedquire]

This depends on the language and needs some manual work.

Golang

We need to use file descriptors for this, for an example of the go side this would look like this
https://github.com/filecoin-project/filecoin-ffi/blob/master/proofs.go#L208-L214

and the rust side looks sth like this
https://github.com/filecoin-project/filecoin-ffi/blob/master/rust/src/proofs/types.rs#L8-L40

For windows this can also be done, but needs specific care, as the apis will be slightly different.

Swift

TODO

Python

TODO

APIs that would benefit from this

TODO