Added NHGFStacData class
The new data class takes a STAC collection as an input, and extracts the x, y, and time coordinates from the metadata, along with the projection of the gridded dataset. Still needs to be fleshed out.
The new data class takes a STAC collection as an input, and extracts the x, y, and time coordinates from the metadata, along with the projection of the gridded dataset. Still needs to be fleshed out.