In the previsous commit the physics modifications between cy48t1 and cy48t3
have been introduced in PHYEX but still using the cy48t1 pack.
This commit introduces new modifications (in arome/ext) to use the cy48t3 pack.
Results are different due to modifications introduced betwwen cy48t1 and cy48t3
in parts other than the physics.
So, a new reference is needed (modifications in check_commit_ial.sh, INSTALL_pack_ial.md).

mode_th_r_from_thl_rt_1?.F90 are suppressed and replaced
by a single th_r_from_thl_rt.func.h include file.

Move some codes from arome specific directory to the common one
Hack FCM to build a shared lib
Compilation of fiat through FCM

For GPU, ice4_nucleation cannot be put in an include file
as included subroutine must not contain local variables.

mesonh/micro/rain_ice.f90 -> mesonh/micro/rain_ice_old.f90
mesonh/micro/rain_ice_red.f90 -> mesonh/micro/rain_ice.f90
bugfix for the new condensation interface
interface harmonisation betwwen mesonh/micro/rain_ice_red.f90 and arome/micro/rain_ice.F90

Quentin 13/04/2022: bugfix infinite loop sedimentation init inner values of ZREMAINT (bug in mesonh only)

- lines too long
- missing & in ifdef REPRO48
- remove ,& in pointer association
- change of ASSOCIATE subroutine

Original code contained a bug (autoconversion ri->rs was not set
to 0 if ldsoft when ri content gets lower than the threshold).
Introducing REPRO48 in ice4_slow allows to suppress the one
introduced in compute_pdf to compensate.

Simpler array declaration
ITPL initialisation
Cp computed using rain

REPRO48 key added in aro_adjust
PA/PB size declaration changed in ice4_tendencies (to allow bound checking)

Small modifications in ice_adjust and condensation

CMICRO variable passed to turb
REPRO48/REPRO55 used (instead of #ifndef REK) in sedimentation_stat

PCOMPUTE/ZCOMPUTE replaced by logical array
Last where statement decorated with mnh_expand

Arrays declared with KPROMA size

Suppression of ZMASK (DO with IF tests)
Arrays declared with KPROMA size
WHERE statement decorated with mnh_expand directives

Suppression of ZMASK (DO with IF tests)
Arrays declared with KPROMA size
WHERE statement decorated with mnh_expand directives

Hail and graupel (with ICE4 option) budgets was wrong in the initial commit and different,
but still wrong, in the previsous commit.
Bug correction in fast_rh protected by a REPRO48 macro

Hail and graupel (with ICE4 option) budgets was wrong in the initial commit and different,
but still wrong, in the previsous commit.
Bug correction in fast_rh protected by a REPRO48 macro

Suppression of ZMASK (DO with IF tests)
Arrays declared with KPROMA size
WHERE statement decorated with mnh_expand directives

use of REPRO55 for mode_ice4_sedimentation_stat.F90 (in addition to REPRO48)