To help with clarity and potential publishing of the crates, the full
`radicle-` prefix is used for the crate names.
Note that it wasn't chosen got `git-ref-format` and `git-trailers`
since they are truly general libraries (bar the feature flag for link
specific reference names).
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
