MR !1354 : Fix msg4 segfault
- Fix segmentation fault that happens after an uplink failure timeout (gNB removes the UE) and when UE tries to use the same (old) RNTI.

MR !1347 : nr pdcp: introduce a thread to do pdcp_data_ind
- Before this commit, pdcp_data_ind is done in the realtime PHY/MAC thread, and this may have an impact on realtime performances.
- introduce a new thread to do the job, freeing the realtime PHY/MAC logic.

MR !1360 : Scope telnet fixes
-no need for form.h header in telnet 
-enable double buffering in scope 
-freeze gNB scope while updating graphs

MR !1363 : CI: a few fixes
-Increased some timeout 
-Added missing gNB log file from artifact

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

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

Before this commit, pdcp_data_ind is done in the realtime PHY/MAC
thread, and this may have an impact on realtime performances.

Let's introduce a new thread to do the job, freeing the realtime
PHY/MAC logic.

This is not a minor change. It may have positive and/or negative
effects. To be tested carefully.

MR !1333: Docker: reduce the number of layers in target images. 
 
MR !1345: small fixes for nr rlc
-trigger status report when t-reassembly expires
-reduce "buffer full" log

Fix Msg4 segmentation fault when UE_id is invalid and reset ul_failure when UE reconnects using C-RNTI

and update tests that fail because of the new logic

Revert "Schedule PUCCH even when ul_failure, otherwise COTS UE cannot use Msg3 to transfer DCCH messages"

This reverts commit c9007ee7

MR !1336 : Handle Msg3 carrying a DCCH or DTCH message
This MR implements the procedures for gNB to handle a Msg3 carrying a DCCH or DTCH message. 
For example, when a new RA happens and the UE is already known by the network.

MR !1337 : Fix build warning
Fix a build warning in develop related with a comparison between ‘X2AP_ResetRequest_IEs__value_PR’ {aka ‘enum X2AP_ResetRequest_IEs__value_PR’} and ‘enum X2AP_Cause_PR’

MR !1330 : nr rlc: speedup buffer status computation
TX and ReTX should be faster now (for RLC AM, UM and TM).
RLC AM Status (function nr_rlc_entity_am.c:status_size()) was not modified, so its CPU usage is the same as before

MR !1276 : NR ACKNACK improvements
This MR improves acknack_scheduling, includes in config file min delay for acknack feedback and fixes bugs in acknack procedures at UE