MR !1233 : NR gNB MAC scheduler BWP start issue fix
This branch fix incorrect use of BWP start at gNB MAC scheduler (in DLSCH and ULSCH allocation and VRB map filling)

MR !1232 : SR/BSR support for NR UE
-added the support of scheduling request in NR UE. 
-added the support of regular, periodic and padding BSR in NR UE. 
-removed memcpy call in nr_ue_get_sdu(). 
-called mac_rlc_status_ind only for existing bearers. 
-Moved NR_LONG_BSR_TABLE and NR_SHORT_BSR_TABLE to nr_mac_common.c

MR !1239 : NR SDAP gNB - Transparent Mode

MR !1257 : Nr ldpc cuda softmodem
Move ldpc decoder accelerated in cuda GPU in a shared lib compatible with oai loader. 
libldpc_cuda.so is built as a ldpctest, nr-sotmodem, nr-uesoftmoden and ocp-gnb targets when cuda development environment is detected. 
At runtime --loader.ldcp.shlibversion _cuda option can be used to select the cuda accelerated ldcp library, except for the ldpctest exec where the -G option has been preserved. Also start implementing an opencl version of the ldpc decoder, starting "translating" the cuda version.

MR !1296 : Apply the NSA t_Reordering value also for SA
Apply the NSA t_Reordering value also for SA to improve the iperf downlink bitrate. The same iperf performance is expected at both NSA and SA

MR !1293 : hotfix SEGV and divide by 0
With latest develop, two bugs appear as long as we don't hide them with gcc -O2 optimisations

MR !1259 : gNB nrUE SA: improve security
Improves security and addition security in nrUE side

MR !1260 : NR CSET0 BWP Start fixes
Fixes a bug in selecting the start of BWP for Coreset0

Use Magma MME in CI tests
Update NSA 2x2 test

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

going on with openCL ldpc implem

Enhance loader to allow library version selection for executables, as ldcptest which do not use the config module.