- Add module docs for the `libsignal_protocol` crate!
- Add docs to the `device-transfer` crate!
- Add docs to `address`!

beef up the docs for `address` because this is an important struct!

respond to review comments

revert module visibility changes

de-clutter the docstring for `.device_id()`

add missing docs warning

fix uuid deps

add doctest for `ProtocolAddress::new()`!

avoid pulling in uuid into dev-dependencies