Identify crates that should not be tor-specific
It would be great to do a once-over on our list of crates and see if there are any that are sufficiently general for us to want to expose to the world. The next step would be to rename them not to start with "tor-", or to make a new replacement crate that doesn't start with Tor and behaves more generally.
Candidates are:
- tor-rtcompat
- tor-rtmock
- tor-checkable
- tor-retry (done)
- tor-units
- tor-bytes
We shouldn't do this for items that would be a lot of work for us to make more general.