Add parallel compilation for toy model + typo in Makefile for OASIS's compilation

See merge request mesonh/mesonh-code!1

Philippe 29/08/2024: bugfix: allocate XIBM_LS to zero size but with last dimension to 1 if LIBM=F (to prevent crash in PHYS_PARAM_n when it is passed to TURB)

Juan 28/08/2024:job_make_mesonh_HPE_jeanzay, change partition=>cpu_p1, less saturated then dedicated one=compil

Juan 28/08/2024:configure, for Irene@TGCC, upgrade module to cmake/3.29.6+inteloneapi/24.2.0+mpi/openmpi/4.1.6.6

Philippe 23/08/2024: fix: coordinates metadata in main box was missing for outputs if field was Z-split

Juan 21/08/2024:modd_netcdf.f90++, Bypass Gfortran/7.X++ Bug by replacing allocatable by pointer member in type(tdimsnc)

Juan 21/08/2024: allow to change the vertical grid at PREP_REAL with a MESONH file as an input (e.g. a precursor simulation).
WARNING, use only 1 PROC if the number of levels are increased with respect to the first vertical grid
works with multi-proc if the number of levels are less than the first vertical grid

Philippe 20/08/2024: minor: fix/restore changelog comments, alignment, remove some unused variables...