Initial release of openerz for Zurich's waste collection schedule:
- Provides Abfuhrkalender (collection calendar) for Zurich via the OpenERZ API.
- Users can query upcoming waste, cardboard, paper, organic, and special disposal dates by region (default: 8003 Zurich).
- Supports multiple waste types and flexible date ranges.
- Includes clear API usage documentation and example queries.
- Returns easy-to-parse JSON with collection dates and types.