change to work with any new eWaterCycle machine on research cloud

[RolfHut]

Currently the notebooks only work on a machine that has a /data/eurocsdms-data/ folder mounted which contains:

• calibration/calibration_" + camelsgb_id + ".csv for the catchment of choice
• /home/rhut/configFiles/ to write model config files and resulting csv files for the calibration notebook
• /home/rhut/figures to write figures
• /home/shared/pcrglobwb_global for the PCRGlobWB parameterset
• /home/rhut/forcing/UK/ for the result of the PCRGLobWB forcing

We want these notebooks to run on a standard machine that runs eWaterCycle on research cloud, thus should make the above less machine specific, or make it clear to sys-ads who are setting up a system that these paths need to be created (and filled).