removal of several warnings. Still lots left. dlsim functional after some recent modifications broke it. New memory leak in dlsch decoding for low mcs high TBS fixed.

compiles, still needs to be tested gNB alone with rf-simulator / RF bench.

- reworked configuration file and configuration for gNB (write directly to ASN1 structure from config module instead of passing intermediate structures)
- added prach procedures for gNB with configuration of PRACH L1/L2 parameters

Alldownlink IP traffic is transferred consistently from the gNB to the PHY of the UE now based on testing with the RFSIMULATOR. Slight extension in FAPI interface required to move the received data to the MAC layer of the UE.

testing merge with develop-nr. removal of pthread_mutex_timedlock, we were using the wrong time argument (needed to be absolute).

Downlink IP traffic flow using LTE RAN stack over NR-PHY. Downlink traffic reaching PHY of gNB now using the noS1 mode. Extensions required for the reception through the LTE RAN stack at the UE side.

BWP information in NFAPI gNB/UE
dci encoding / decoding integrated
DCI decoding still fails