renaming file:openair2/PHY_INTERFACE/IF_Module_L2_primitives_nb_iot.c -> openair2/PHY_INTERFACE/IF_Module_L2_primitives_NB_IoT.c
openair2/PHY_INTERFACE/IF_Module_nb_iot.c -> openair2/PHY_INTERFACE/IF_Module_NB_IoT.c
openair2/RRC/LITE/L2_interface_nb_iot.c -> openair2/RRC/LITE/L2_interface_NB_IoT.c
openair2/RRC/LITE/MESSAGES/asn1_msg_nb_iot.c -> openair2/RRC/LITE/MESSAGES/asn1_msg_NB_IoT.c
openair2/RRC/LITE/rrc_common_nb_iot.c -> openair2/RRC/LITE/rrc_common_NB_IoT.c
openair2/RRC/LITE/rrc_eNB_nb_iot.c -> openair2/RRC/LITE/rrc_eNB_NB_IoT.c
openair2/RRC/LITE/vars_nb_iot.c -> openair2/RRC/LITE/vars_NB_IoT.c

all include of defs.h by defs_nb_iot.h in 33 files.

introduction of some UE-specific parameters for NPDCCH (Seems missing in FAPI for the moment). Code copile, 149 warnings

Implementation of configuration data structures following FAPI-like approach. Some parameters seem to be non implemented in FAPI (for the moment addedd manually). Cleaning of some part of RRC code. Code compile.

Added new files for IF-module purposes (still to complete), review some configuration procedure for FAPI-like approach. Code compile

First implementation of FAPI-like P5 configuration for the PHY layer. PHY_Config_t structure, modified NB_rrc_mac_config_req_eNB for triggering the IF_Module PHY_config_req function. Some common config. and all the dedicated configuration are missed

Adding new files 'L2_interface_nb_iot.c'(temporary collection of the major interfaces among layers),'proto_nb_iot.h',.. and modification of others. The code compile but not running test since still lower layers to be completed. Still to be reviewed the SRBs logic and activation

add ConnectionRelease message and introduction of SRB1bis,  some bug fixed, code not tested (may not compile)

structure type name changed in defs_nb_iot.h for compile purposes, fix some bugs. Code compile but still to much wornings