Filtering Geospatial Data (#2165)

- filters out any non-geospatial data fields (i.e. crs, lat_bounds)
- fixes the UI position query issue caused by attempting to query timeseries data on the crs field
- still need to test compatibility with the builder

Author: kieranbartels

pygeoapi/provider/xarray_.py

@@ -117,6 +117,8 @@ def get_fields(self):
         if not self._fields:
             for key, value in self._data.variables.items():
                 if key not in self._data.coords:
+                    if not {self.time_field, self.x_field, self.y_field}.issubset(value.dims):
+                        continue
                     LOGGER.debug('Adding variable')
                     dtype = value.dtype
                     if dtype.name.startswith('float'):