F.Couvreux 30/06/2021: add LRELAX_UVMEAN_FRC forcing. Instead of LRELAX_UV_FRC which applies the u,v relaxation read in namelist on each atmospheric column,
LRELAX_UVMEAN_FRC applies the relaxation on the horizontal mean of u and v at each level. To be used in LES mode.

P.Tulet 30/06/2021: bugfix diag with chemistry variables : no time splitted needed at DIAG so SVT must be computed with XSVT and GSPLIT=F

Philippe 28/06/2021: small optimisation in the call to ice4_rainfr_vert (create arrays with zeros instead of multiplications by zero)

Philippe 28/06/2021: netCDF: use correct integer datatypes for netCDF integers + respect Doctor norm

Philippe 28/06/2021: IO: better management of pre-5.5 files (default values for missing fields instead of crash)

Philippe 28/06/2021: allocate to zero-size arrays in ini_model_n to prevent use of unallocated arrays later
+ allocate some of them to non zero-size only if necessary

- LIMA sedimentation (activated as for ICE3/C2R2)
- correction of surface flux reduction with respect to the resolution (LGZ) to activate only if needed (grey-zone resolutions)

Quentin 25/06/2021: bugfix introduced by commit 09f31 (OCEAN LES). Missing a CALL for the atmospheric case for computation of the pressure

- Initialization and coupling aerosols from CAMS forecasts/analysis
- Kappa-Kohler theory to compute CCN activation
- Subgrid condensation with LIMA (LSUBG_COND=T)
- Prognostic supersaturation with LIMA (LSPRO=T and LADJ=F)
- Option to relax the adjustement to saturation

TODO : 014_LIMA test case is not working for now with new options LSPRO=T and LADJ=F

Philippe 18/06/2021: budgets (LES): improve some names and comments + better adequacy with documentation (user guide)

Quentin 16/06/2021: bugfix clarification of some points for the merge of Ocean-Atmosphere coupled LES dev

P.Marquet 15/06/2021: correction on the exponent of final BL89 mixing length according to Lemarié et al. 2021