- use separate Findxran.cmake file
- verify headers of xran lib is present
- require DPDK
- avoid environment variables

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

- update library location
- correct information for ioWorker
- disable HT on servers
- add local/lib trick for Fedora-based OS. Also clean-up on line terminations
- add another pkg-config trick.
- Proper version(s) of DPDK
- Support for both Bronze and E releases
- Minor fixes on E-patches and build system
- fixed a few typos and better explanation of the CPU allocation scheme
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

integration_2023_w41

See merge request oai/openairinterface5g!2394

* !2389 Remove global variable rx_spatial_power
* !2364 NR UE PUCCH2 sanitize errors
* !2352 Break DCI processing function into smaller pieces
* !2391 Remove calloc from L1 at CSIRS_PDU conversion function
* !2393 Fix UE assertion due to PUCCH resource lookup all BWPs
* !2307 Improve documentation for L2sim Readme
* !2310 doc(websvr): how to install properly the dependencies

Merge remote-tracking branch 'origin/break_dci_processing_function_in_smaller_pieces' into integration_2023_w41

- Remove calloc from convert_csirs_pdu function, change return value
  from 'nfapi_nr_dl_tti_csi_rs_pdu_rel15_t *' to
  'nfapi_nr_dl_tti_csi_rs_pdu_rel15_t' to not require call to 'free()'
- Set parameter pointer as const as it's not modified
- Remove cast to fapi_nr_dl_config_csirs_pdu_rel15_t in csi_rx.c as
  ue->csirs_vars[gNB_id]->csirs_config_pdu is already of type
  fapi_nr_dl_config_csirs_pdu_rel15_t.
- Remove casted parameter in call to convert_csirs_pdu and replace with
  csirs_config_pdu obtained earlier from
  ue->csirs_vars[gNB_id]->csirs_config_pdu.