rougenoir 0.1.0

A red-black tree and set with callbacks
Documentation
# Creating a Release

[GitHub](https://github.com/stackmystack/rougenoir/releases) and
[crates.io](https://crates.io/crates/rougenoir/)
releases are automated via
[GitHub actions](./.github/workflows/release.yml)
and triggered by pushing a tag.

1. Run the release script [`bin/release`]./bin/release.
   The current version will be computed automatically if no version `v[X.Y.Z]` was passed.
2. Push the changes: `git push`
3. Check if [Continuous Integration]https://github.com/stackmystack/rougenoir/actions
   workflow is completed successfully.
4. Push the tags: `git push --tags`
5. Wait for [Release]https://github.com/stackmystack/rougenoir/actions
   workflow to finish.
6. Check if [Continuous Integration]https://github.com/stackmystack/rougenoir/actions
   workflow is completed successfully.
7. Push the tags: `git push --tags`
8. Wait for [Release]https://github.com/stackmystack/rougenoir/actions
   workflow to finish.