ECMWF Data Stores Service (DSS) API Python Client

The `ecmwf-datastores-client` is a Python library providing programmatic access to the ECMWF Data Stores Service (DSS) API. It allows users to interact with data catalogues like the Climate Data Store (CDS), Atmosphere Data Store (ADS), and Early Warning Data Store (EWDS) for metadata retrieval, synchronous or asynchronous job submission, and data download. Currently at version 0.5.1, it is in an 'Incubating' state, implying a mostly stable interface but with a readiness for incoming changes.