Wetterdienst

Feature
- Add capability to export data to Zarr format
- Add Wetterdienst Explorer UI. Thanks, meteoDaniel!
- Add MAC ARM64 supoort with dependency restrictions
- Add support for stations filtering via bbox and name
- Add support for units in distance filtering

Refactor
- Rename station_name to name
- Rename filter methods to .filter_by_station_id and .filter_by_name, use same convention for bbox, filter_by_rank (previously nearby_number), filter_by_distance (nearby_distance)

Fix
- Radar: Verify HDF5 responses instead of returning invalid data
- Mosmix: Use cached stations to improve performance

Refactor
- Make .discover return lowercase parameters and datasets

Refactor
- Use direct mapping to get a parameter set for a parameter
- Rename DwdObservationParameterSet to DwdObservationDataset as well as corresponding columns
- Merge metadata access into Request
- Repair CLI and I/O subsystem
- Add capability to export to Feather- and Parquet-files to I/O subsystem
- Deprecate support for Python 3.6
- Add ``--reload`` parameter to ``wetterdienst restapi`` for supporting development
- Improve spreadsheet export
- Increase I/O subsystem test coverage
- Make all DWD observation field names lowercase
- Make all DWD forecast (mosmix) field names lowercase
- Rename humanize_parameters to humanize and tidy_data to tidy

Feature
- Add Environment and Climate Change Canada API

Fix
- Radar: Use OPERA as data source for improved list of radar sites

Feature
- Add StationsResult and ValuesResult to allow for new workflow and connect stations and values request
- Add accessor .values to Stations class to get straight to values for a request
- Add top-level API

Fix
- Fix issue with Mosmix station location

Fix
- Fix date filtering of DWD observations, where accidentally an empty dataframe was returned

Feature
- DWD: Add missing radar site "Emden" (EMD, wmo=10204)

Fix
- Mosmix stations: fix longitudes/latitudes to be decimal degrees (before they were degrees and minutes)

Refactor
- Change key STATION_HEIGHT to HEIGHT, LAT to LATITUDE, LON to LONGITUDE
- Rename "Data" classes to "Values"
- Make arguments singular