added module callphysiq_mod.F90 in dynphy_lonlat/phy* which contains the routine "call_physiq" which is called by calfis* and calls the physics. This way different "physiq" routine from different physics packages may be called: The calfis* routines now exposes all available fields that might be transmitted to physiq but which is actually send (ie: expected/needed by physiq) is decided in call_physiq.
turned "physiq.F90" into module "physiq_mod.F90" for better control of "physiq" arguments. Extracted embeded "gr_fi_ecrit" as self-standing routine (but note that this routine actually only works in serial mode).