To be able to use log setup across the different components of
heartwood, expose a `logger` module from `radicle`. This also includes
a `test` logger.
These modules are guarded behind a `logger` feature flag, so that
other crates are not bringing any uneeded dependencies.
This allows logging to be setup in `radicle-cli-test` so that when a
test fails, the log output is present for debugging purposes.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett