otherwise, if we only have a (negative) SR, the UE did not send
anything, and the PUCCH CQI is invalid

1: there can be 2bits AckNack + SR in PUCCH F0
2: when allocating csi_pucch, zero out struct
3: Make unfree resources a warning
4: When asserting, explain the issue

- Configure PUCCH Format 0 to be in separate RBs (each UE has dedicated
  resources)
- Configure RA preamble to be different per UE
- Configure CSI offset such that no two UEs have their report in the
  same frame

Nb_ue is not unique among UEs: consider 2 UEs present. The last UE has
CSI idx "2". Now the first UE disconnects, and a new UE connects. It
will also get CSI idx "2", and I assume this is not what we want.

MR !1079 / MR !1108:
1. Read slots from config file and schedules all slots *except* for slots 0 and 10. This is not a problem, since currently we cannot allocate more than six HARQ feedbacks in a slot, but we might have up to 7 with current configuration

2. phytest mode is configurable. From `nr-softmodem -h`:

   -m: Set the downlink MCS for PHYTEST mode
   -t: Set the uplink MCS for PHYTEST mode
   -M: Set the downlink banwdwidth (in PRBs) for PHYTEST mode
   -T: Set the uplink banwdwidth (in PRBs) for PHYTEST mode
   -D: Bitmap for DLSCH slots (slot 0 starts at LSB)
   -U: Bitmap for ULSCH slots (slot 0 starts at LSB)

3. Scheduler prints more information: UE PHR, PUCCH SNR, PUSCH SNR, RSSI
4. The scheduler learned to scheduler DLSCH/ULSCH in mixed slots (if the time domain allocation matches the mixed slot)
5. The scheduler expects
   * PDSCH Time Domain allocation index 0 to be the DL slot allocation
   * PDSCH TDA index 1 for Mixed DL slot
   * PUSCH TDA index 0 for UL slot
   * PUSCH TDA index 1 for Mixed UL slot
   * PUSCH TDA index 2 for Msg.3
6. Some more cleanup, e.g., separate PDSCH/PUSCH data structures into "semi-static" data (e.g., TDA allocation to use, since it changes seldomly) and "dynamic" data (e.g., RB allocation per slot, which changes every slot)


MR !1137 : Benetel config files fix

MR !1129 : gnb-realtime-hotfix
-Hotfix for realtime performance issue
-Enabled L1 and scheduler timing statistics
-Changed order of UL Indication. L1 Rx -> UL Ind -> L1 Tx

MR !1123 : [CI] ci_phytest
-new 5G NR phy test -q -U 787200 -T 106 -t 28 -D 130175 -m 28 -M 106

MR !1128 : [CI] ci_add_runtime_stats
-adding L1 processing stats

MR !1132 : [CI] ci_add_uldlharq_stats
-additonal ulsch/dlsch stat

no MR : hotfix branch fixgtpu 
-revert default values for 5GS
-fix T_IDs.h build

reverting some changes in benetel-5g config files that were introduced in anticipation of MR 1079, but which has not been merged yet.