Database fields for: templates_branch, model_branch, common_templates_branch, ocean_diagnostics_branch. Some bug fixing and improvements

SSH to local machine by using 'localhost' keyword changed by 'HOSTNAME' environtment variable to avoid SSH key issues running Autosubmit from different locations

Post-processing any number of leadtimes and not only complete years is now available for NEMOVAR also

rather waiting in serial/sequential queue

of this switch basically LFASTRES & LFASTRESW are tunned...
- MODEL_rstini section has also been updated

- introduced "AHI0" into ecearth templates...

- a few minor corrections or bug fixes...

development of the model and reduce the manual intervention as much as possible.
- a few important cautions for users who are going to intactive with model
setup (namelist etc) and sources.

Correcting some mistakes in the merging of changes on top of ocean nudging. But a proper testing requres about a week which is not done yet.

- please follow the convention of creating sections into the common templates
so that one could always know about the contact person, Dep (dependencies) and
Ref (reference id of experiment)
- rule of thumb is: may everyone don't need everything