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

Added grid folder to be used for interpolation (as it is intended to be part of new CMOR specification)