v0.1.0

Release version 0.1.0

### Added
- Changelog, license, readme.
- Doxygen config file.
- [WvTest][] unit testing framework.
- Link `bcar` and `pslot` libraries.
- Implement find entry by reverse method.
- Find entry by reverse method for perpendicular parking slots.
- Find entry with BFS for parallel, by reverse for perpendicular.

[WvTest]: https://github.com/apenwarr/wvtest