Quentin 03/09/2020: GFS bugfix: vertical interpolation (ver_inter_to_mixed_grid.f90) from the GFS isobaric pressure grid was wrong.
Previously, the computation of the altitude of mass points XZMASS_LS (ver_prep_gribex.f90) was done from XZFLUX_LS computed from the orography PZS_LS (in change_gribex_var.f90) as for hybrid vertical coordinate.
However, the vertical grid of GFS is isobaric pressure (no orography). Thus, previously the first level of GFS data (at 1000hPa) was interpolated at the first grid level of MNH (orography + ZHAT) leading to strong biais of temperature, wind and so on near high topography. The corrections include :
- reading of all levels (31),
- add tyeOfFirstFixedSurface argument for SEARCH_FIELD routine to read correctly the orography and geopotential height from the GRIB,
- reading the geopotential height in read_all_data_grib_case.f90 for GFS and inject it in the case of vertical interpolation of an isobaric pressure grid in ver_prep_gribex_case.

(cherry picked from commit f43840dd)

(cherry picked from commit 47004fb1)

Juan 03/08/2020:Oasis Toy,run_mesonh_xyz, move MESONH at the end of Mpirun to have line debug info in scratch case

Juan 03/08/2020:mode_scatter.f90, For reduction of MPI_BUFFER_SIZE , in SCATTERXY_X3 replace MPI_BSEND -> MPI_ISEND

Marie M. 28/07/2020: correction to read correctly ASCLLV files during PREP step when coupled to MesoNH (e.g. files to initialize HUG and TG)

Christine 24/07/2020: correction on Prandtl functions for subgrid condensation with 3D turbulence scheme

Marie M. 24/07/2020: SURFEX bugfix : correction of IF condition impacting the interpolation of tiles fractions at PGD step (when fractions are prescribed in a file and when some points don't have data) from commit f70f6454 of SURFEX repository 29/04/2019

(cherry picked from commit 863d628c)

Philippe 08/07/2020: bugfix: budgets: add missing multiplication by prhodj for scalar variables budgets

Philippe 30/06/2020: budgets: bugfix for HENU source in concentration of activated nuclei C2R2/KHKO budget

Philippe + Benoit Vié 18/06/2020: improve removal of negative scalar variables: use ZEXN instead of PEXNREF

Philippe + Benoit Vié 11/06/2020: improve removal of negative scalar variables + adapt the corresponding budgets

Philippe 04/06/2020: set_conc_lima: correct array start for microphysics concentrations + add kmi dummy argument
(this subroutine is also called for other models)

Marc M. 28/04/2020: minor correction of ACPRT accumulated precipitation conversion to mm taken into account twice in DIAG program in written output

 Quentin 21/04/2020: major correction for GFS grib use : the u and v wind component is now written in the correct vertical order at prep_real