integration_2023_w13

• !1945 (merged) Free RNTI related structures at PHY after UE disconnection
• !2011 (merged) Creation of new pipeline LTE-TDD-2x2-container
• !1854 (merged) Handle reconfigurationWithSync
• !2019 (merged) bugfix: LDPC decoding in the gNB: clear d properly
• !2038 (merged) Fix DL 2x2 errors
• !2039 (merged) Adding test-case in XML to reset USRP in LTE-TDD pipeline
• !2008 (merged) Implement NR-UE Deregistration procedure
• !2023 (merged) Rework PDCP OAI API to allow custom SRB data forwarding (e.g., in F1)
• !2015 (merged) Update documentation: CI, general README.md, overview of doc README, various improvements