Implement an async flow about futil-js

[sadasant]

Here's a working version made by a friend: const asyncFlow = (...fns) => x => fns.reduce((v, f) => v.then(f), Promise.resolve(x))

[daedalus28]

Ramda has stuff like pipeP and composeP, but interestingly they're considering removing it:

ramda/ramda#1869

[daedalus28]

This is covered by #411
It also allows for automatic Promise.all/promiseProps calls so you can generally just flow together anything async and it will work without thinking about promises. flowAsyncDeep is wonderfully magical. It also only becomes async if necessary, so you can use if safely in sync scenarios without needing an extra await.

[daedalus28]

flowAsync is publishing in 1.74.0 right now 😄