temporary version, use of threadPool for two main RX/TX gNB threads switched to simpler MsgQ and handler thread. TX is called directly from RX thread instead of spawned. with sl_ahead set to TDD period, only TX or RX will execute in a given slot (except in mixed-slot).

MIMO not working well when throughput is pushed.

integration_2023_w07

See merge request oai/openairinterface5g!1955

!1817 OAI LTE improvements
!1925 Avoid saturation in PUSCH for UL channel estimation
!1940 5G UE IMEISV 16 digits
!1944 fixes in limiting MCS and number of PRB while handling NR PHR
!1953 bugfix: length type too short
!1935 updating simulators docker-compose files for CN5G release v1.5
!1941 Dockerfile for aw2s RRUs on u18.04
!1956 Updated 5G L2sim tutorial
!1951 Conditional compilation of the T1 and CUDA offload libs
!1926 CI custom command

Merge branch 'VVDN_ORAN_fhi_integration' of https://gitlab.eurecom.fr/oai/openairinterface5g into VVDN_ORAN_fhi_integration

changes to support multiple TX and RX antennas with O-RAN 7.2 split. zero-copy in 7.2 interface ru_procedures with ru->do_precoding=0.