Some fixes on the parcel mode, Aurade dataset almost done, pixel and parcel mode do not produce the same results. Other various improvements.

Added parcel mode outputs, improved docs, improved samir parame tests, minor corrections and changes.

Further improvements in optimization. Manage to create real empty output dataset and append values along the time dimension, greatly improves total run speed. Reworked the custom_input notebook for a better handling of the land cover class conversion. Added tests on parameters values to make sure they are in correct range, parameter ranges are defined in a csv file (params_samir_min_max.csv). Other small modifications.