(cherry picked from commit 4691b211)

Philippe 31/10/2017: IO: pass TPFILE to IO_WRITE_FIELD_LFI_xxx calls and use it to retrieve the logical unit + correct a bug in the integer kind of the LU

Philippe 30/10/2017: IO: DIAG: minor bug correction: renamed field PABST in PRES (when written in hPa)

* replace FMREAD/FMWRIT by IO_READ/WRITE_FIELD
* modify SET_CONFIO_ll call in mnh2lpdm.f90
* use TZPGDFILE for read_chem_data_netcdf_case.f90
* declare TZATMFILE when necessary

These subroutines were not using the correct buffer if CFORMAT='LFICDF4'

Philippe: 24/10/2017: workaround in PREP_PGD due to NPROC set earlier than before (commit 86f22a35)

Philippe: IO: allocate ZFIELDP/IFIELDP with zero size to remove alerts with Valgrind (not really necessary)

Philippe 24/10/2017: IO: bug correction: IO_READ_FIELD_BYFIELD_L1: size of message in MPI_Bcast was wrong (1 instead of size(ofield))

Philippe 17/10/2017: problem with SNGL intrinsics on BlueGene/Q => transform it by REAL in preprocessing

+ FMOPEN_ll/FMCLOSE_ll are now private
+ cleaning of comments

* use new file structure for CLUOUT and CLUOUT0 (->TLUOUT and TLUOUT0)
* use PRINT_MSG with NVERB_FATAL to replace (some) "callabortstop"
* set TFILE_OUTPUTLISTING  to select file for outputs of PRINT_MSG
* removed some unused code

* added LVERB_OUTLST, LVERB_STDOUT, LVERB_ALLPRC in NAM_CONFIO namelist
* added TFILE_OUTPUTLISTING pointer to select file for output of PRINT_MSG

* added OUTPUTLISTING CTYPE for files (IO_FILE_OPEN_ll and IO_FILE_ADD2LIST)
* added NLU variable in TFILEDATA datatype
* removed HFIPRI argument in IO_FILE_OPEN_ll, FMOPEN_ll, IO_FILE_CLOSE_ll
  and FMCLOS_ll subroutines
* removed FM_ERR subroutine
* KRESP return code is now optional for IO_FILE_OPEN_ll, FMOPEN_ll,
  IO_FILE_CLOSE_ll and FMCLOS_ll subroutines