+ replacing find_ue_NB by find_ue_NB_IoT

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

replacing NB by NB_IoT in SCHED/IF_Module_L1_primitives_nb_iot.c,SCHED/defs_nb_iot.h,SCHED/phy_procedures_lte_eNb_nb_iot.c,targets/RT/USER/lte-enb.c

renaming function: replacing NB_generate_eNB_dlsch_params_from_dci by generate_eNB_dlsch_params_from_dci_NB_IoT, in files
LTE_TRANSPORT/dci_tools_nb_iot.c /LTE_TRANSPORT/proto_nb_iot.h SCHED/phy_procedures_lte_eNb_nb_iot.c

renaming function: replacing NB_generate_eNB_ulsch_params_from_dci by generate_eNB_ulsch_params_from_dci_NB_IoT , in files /LTE_TRANSPORT/dci_tools_nb_iot.c /LTE_TRANSPORT/proto_nb_iot.h SCHED/phy_procedures_lte_eNb_nb_iot.c

renaming generate_dci_top_NB function in LTE_TRANSPORT/dci_nb_iot.c LTE_TRANSPORT/proto_nb_iot.h phy_procedures_lte_eNb_nb_iot.c

adding NPDCCH structure for UE specific and Common Search space. To be implemented NPDCCH repetitions.Code Copile. 145 Warnings

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

Adding preliminary .config file for nb-iot (to be completed), adding EARFCN calculation for configuration with corresponding table for UE cat NB1/NB2

 adding some consideration and implement some checking based on FAPI specifications for ndlsch path. Function for encoding, modulation ecc.. still to be added. Code Compile. 144 warnings

modified conditions for triggering the npdsch_procedure, still modulation, encoding...functions to be integrated. Warnings 144.Code compile

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

almost complete the ndlsch and npdcch path. missed the coding, modulation and scrambling function.Code compile. 140 warnings

start modification for HARQ process and adding major strucutres to PHY_vars_eNB. Code not compile. dci_nb_iot.c to be added to CMakeList

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