implement rrc list module, declair in rrc_inst and initialization, finish part of l12 FAPI messages, DCI0, DCI1, DCI2 and UCI, part of DCI_IND messages

- Create task for GAB_APP and GAN_RRC
- Create the NR FAPI for P5 interface
- *It could be build, but still have a lot of warning need to maintain

2.NR RRC do_SERVINGCELLCONFIGCOMMON for all of common config. will be transmit to lower layer by rrc_mac_config_req_gNB"

1. Modify the wrong name file ans1c to asn1c 2.Update the do_MIB function 3.Update the gNB initial parameter for non-standalone

UE directory splits, creation of UE-specific files, common UE/eNB files and extraction of UE/common components from eNodeB files. renaming of files to minimize common names across directories (i.e. defs.h, vars.h, extern.h)

158 does not work well with the eNB softmodem.

modifications for simulator : power normalizations for UE TX, small changes to SNR targets for power control, default UE power (23 dBm now)

This work is based on work by NTT.

To use the code, do:
./build_oai --oaisim --ue-nas-use-tun -t ETHERNET -c

This commit only handles oaisim in S1 mode.

We won't handle noS1 mode.

Conflicts:
	cmake_targets/build_oai
	openair1/PHY/LTE_TRANSPORT/prach.c
	openair1/SCHED/phy_procedures_lte_ue.c
	targets/ARCH/COMMON/common_lib.h
	targets/RT/USER/lte-softmodem.c

This feature requires an un-official version of asn1c :

https://github.com/velichkov/asn1c/tree/s1ap

Only ulsim and dlsim compile. The others (dlsim_tm4 pucchsim prachsim
pdcchsim pbchsim mbmssim) have been disabled.

Command line to compile: ./build_oai --phy_simulators

It is annoying and does not seem to work properly.
To be checked/reworked if needed.

Keep in mind that we also want oaisim to be functional.

if the FlexRAN agent is disabled, do not read all the data and skip reading
of more information

The agent_id is a uint64 consisting of: module ID (i.e. mod_id, the several
instances of OAI at once, 16 bit), the enb_id from the configuration file (32
bit) and the cell_id from the configuration file (16 bit).

The module ID is part of the agent ID but it is easier to have it directly in
the struct.

The PHICH was not programmed for the last round (4) because it was
not programmed in rx_sdu but in schedule_ulsch_rnti, only in case
of a programmed retransmission (there is obviously no retransmission
programmed after the last round).

The case of Msg3 is not handled. To be done somehow.

The code is too complex. This commit may not be enough.