Quentin 27/01/2020: fix version of EPYGRAM to 1.3.7 and switch of GRIB number ID for Orograpgy and hydrometeors in ARPEGE/AROME GRIB2

Robert S. 02/12/2019: Cartesian coordinates allowed for stations and passive polutants (paspol). Use of LCARTESIAN instead of LATSTAT flag for multi-proc

Christine 27/11/2019: correction in the drag formula and application to building in addition to tree

(cherry picked from commit 0bd1d21d)

(cherry picked from commit 8a27344b)

(cherry picked from commit eb588b37d22491a9f83695ddb158275fc2edc052)

Christine 11/10/2019: minor correction, unallocation of allocated radiation variable with CRAD=NONE for profilers and stations

Philippe 19/09/2019: CDF2CDF: add possibility to provide a fallback file if some information are not found in the input file

Quentin 17/09/2019: add missing abort if coupling files date are not ordered or before the date of the segment

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)