Introduce `ToPeerId` type for things that can be turned into PeerId

[Gozala]

Based on discussion here https://github.com/ipfs/js-ipfs/pull/3365/files/fa7c2c13c43bab922052104fe8aff863d9725e9b?file-filters%5B%5D=.js&file-filters%5B%5D=.json&file-filters%5B%5D=.ts#r520418521

[vasco-santos]

Cross posting from https://github.com/ipfs/js-ipfs/pull/3365/files/fa7c2c13c43bab922052104fe8aff863d9725e9b?file-filters%5B%5D=.js&file-filters%5B%5D=.json&file-filters%5B%5D=.ts#r522871631

We already have several createFrom* functions in peer-id, but they are targeted to a specific type https://github.com/libp2p/js-peer-id#import
I think this would be nice to have, I would just go with PeerId.createFrom(param: ToPeerId) to be consistent with what we already have.