openair2/RRC/LITE/proto_nb_iot.h -> openair2/RRC/LITE/proto_NB_IoT.h

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

Setup of required variables for managing the SI messages transmission, according to our Assumptions. Still to include the function for encoding, scrambling ecc.. of npdsch and npdcch for the DL path. Code compile. 141 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

implementation of is_SIB1_NB and is_SIB23_NB function for SI scheduling purposes (NB_mac_rrc_data_req_eNB), the code compile but still warning to be solved

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

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