Plans for BLOM/iHAMOCC for NorESM2.5

Tentative plans for default (and optional) settings for BLOM/iHAMOCC towards NorESM2.5

[x] BLOM code refactorization
[ ] hybrid coordinates (default) (isopycnal optional)
[ ] only mks (default) (remove cgs dependencies)
[ ] Add 1/3 degree grid resolution
[ ] Add 2 degree grid resolution
[ ] Test all model configurations with NUOPC coupler
[ ] Apply existing higher order vertical reconstruction for the remapping of diagnostic fields on to reference depths (hybrid coord. only, reconstruction does not exist for isopycnic coord.)

iHAMOCC-specific

[ ] Cold start of preformed (silicate) tracer - handle all preformed tracers equally - refer to #356 for the provision of climatologies of preformed tracers.
[ ] Make preformed tracers optional - to enable switching them off for HR runs
[ ] Remove the option to run cyanobacteria (bluefix) in the MLD (default remains to run them in the euphotic zone)
[ ] Unify N-deposition reading (if not carried out for NorESM2.3 release)
[x] (potentially) making output files more cdo-compatible #355
[ ] Remove/modify compsets for the extended N cycle (in cime_config/config_component.xml)
[ ] Potentially remove separation of processes into euphotic and non-euphotic zone processes.
[ ] Potentially enable to include weathering rates

NorESMhub / BLOM