Merge remote-tracking branch 'NR_DL_scheduler' into integration_2020_wk40

NOTICE.md

ci-scripts/Jenkinsfile-gitlab

ci-scripts/checkCodingFormattingRules.sh

common/utils/T/defs.h

common/utils/T/tracer/defs.h

doc/TESTING_GNB_W_COTS_UE.md

executables/stats.h

executables/threads_t.h

openair1/PHY/NR_TRANSPORT/pucch_rx.c

openair1/SCHED_NR_UE/phy_procedures_nr_ue.c

openair1/SIMULATION/NR_PHY/dlsim.c

openair2/LAYER2/NR_MAC_gNB/config.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_bch.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_phytest.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_primitives.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c

openair2/LAYER2/NR_MAC_gNB/mac_proto.h