Changed order of variable renaming at send_file to avoid errors. Better management of valid_min and valid_max attributes

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