WIP: renku datasets and RPSS verification

• git lfs track nc and zarr

• add renku datasets notebook

• add renku datasets:

  • hindcast-like-observations_2000-2019_biweekly_deterministic
  • forecast-like-observations_2020_biweekly_deterministic
  • hindcast-like-observations_2000-2019_biweekly_tercile-edges
  • hindcast-like-observations_2000-2019_biweekly_terciled
  • forecast-like-observations_2020_biweekly_terciled
  • ecmwf_forecast-input_2020_biweekly_deterministic
  • ecmwf_hindcast-input_2000-2019_biweekly_deterministic

• add verification notebook

• add ML notebook based on weatherbench

• link submission file to website

• add reproducibility section below in training

• how to deal with this dry mask? provide as renku dataset? now implicitly masked in categorized observations obs_p

• dont commit nc and zarr, only with git lfs

• dont commit figures