renaming file: openair2/RRC/LITE/MESSAGES/asn1_msg_nb_iot.h -> openair2/RRC/LITE/MESSAGES/asn1_msg_NB_IoT.h
openair2/RRC/LITE/defs_nb_iot.h -> openair2/RRC/LITE/defs_NB_IoT.h

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

integration of LCID for NB-IoT (MAC/defs_nb_iot.h), complete the thread for the phy_procedures_TX (Schedule_response) and other minor changes

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

Managment of SRBs, SecurityFailure, introduction of new function in PDCP for short SN and other small chages. Introduction of Develop-Records.txt file for keep tracking

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