Created a class to encapsulate al the experiment management (get chunk list, get member str...) functionalities

Minor changes to make the diagnostics more user-friendly. Removed old diagnostics. Added measurement of time consumed by each diagnostic class

More exceptions for CMORization. Automatic deflation and shuffling when sending netCDF files to the storage

Merge branch 'develop-python_migration' of https://earth.bsc.es/gitlab/es/ocean_diagnostics into develop-python_migration

Conflicts:
	earthdiagnostics/ocean/mixedlayersaltcontent.py