Philippe 07/12/2020: add CLEANLIST1D_ll subroutine + use it to correctly deallocate associated memory

(cherry picked from commit 2646cee7)

(cherry picked from commit 47004fb1)

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

Juan 04/03/2020:mode_io_file_nc4.f90, reactive call to io_get_mnhversion+io_check_cleanly_closed_nc4 , no more perf pb with IOZ

Sylvie D. 28/02/2020: Ecoclimap SG add STREAM type of IO and compatibility check of number of 20 vegtypes possible (before, only 19 vegtypes was possible with ecoclimap 2)

(cherry picked from commit eb588b37d22491a9f83695ddb158275fc2edc052)

Philippe 05/09/2019: IO: Z-split files: to prevent serialization between files, nmnhversion is taken from the main file (modifs taken from 55X-dev-IO)

Juan 09/07/2019: for bug in management of XLSZWSM variable , add/use specific 2D TLSFIELD2D_ll pointer , & other minor correction

Philippe 02/07/2019: flush messages also for files opened with newunit (logical unit can be negative)

Philippe 06/06/2019: bugfix in FIELDLIST_GOTO_MODEL (XLSTHM was overwritten if LUSERV=.FALSE. due to wrong IF block)

Soline Bielli : 01/03/2019: Sea salt update: the significant sea wave height now influences salt emission.
The sea salt is either set to a default value of 2meters or read in ECMWF Grib file (if the variable exists).
Now 5 modes are available (3 before) and the order in output is changed.
The large-scale sea wave height from ECMWF grib is 2D. HALO2 update of the ls variable in modeln is not yet adapted to 2D field (it is switch off in this version for this variable).

Philippe 21/02/2019: bugfix: intent of read fields: OUT->INOUT to keep initial value if not found in file

Joris P. and Pierre T. 14/02/2019: corrections for the use of MEGAN scheme (always the night in mode_megan) + desactivation of leaf temperature correction with sun/shade + add missing default values

Philippe 22/01/2019: replace double precision declarations by real(kind(0.0d0)) (to allow compilation by NAG compiler)

Philippe 21/01/2019: add LIO_ALLOW_NO_BACKUP and LIO_NO_WRITE to modd_io_ll to allow to disable writes (for bench purposes)