Adding `Mathiz.register_route` method, encrypt cookies data and update [WSBLib](https://github.com/firlast/wsblib) version.
Major commits
- [73294bd](https://github.com/firlast/mathiz/commit/73294bd): Update project requirements;
- [ba30772](https://github.com/firlast/mathiz/commit/ba30772): Adding `EncryptCookies` class;
- [905d079](https://github.com/firlast/mathiz/commit/905d079): Create function to encrypt cookies;
- [4bb03c2](https://github.com/firlast/mathiz/commit/4bb03c2): Create function to decrypt cookies;
- [23481b3](https://github.com/firlast/mathiz/commit/23481b3): Encrypt cookies in `Mathiz._process` method;
- [09ddd51](https://github.com/firlast/mathiz/commit/09ddd51): Updating requirements.txt;
- [27a613f](https://github.com/firlast/mathiz/commit/27a613f): Removing empty dict from `RequestData` instance;
- [377f4a3](https://github.com/firlast/mathiz/commit/377f4a3): Update wsblib version in setup script;
- [0263f8c](https://github.com/firlast/mathiz/commit/0263f8c): Encrypt just cookie value;
- [b7aa6b6](https://github.com/firlast/mathiz/commit/b7aa6b6): Decrypt received cookies;
- [24555b6](https://github.com/firlast/mathiz/commit/24555b6): Creating `register_route` method to register routes.