Includes the following updates:
1. oaisim/lte-softmodem in noS1
2. UE fixes for oaisim
3. IF4p5 fixes (doesn't work on develop)
4. UE fixes for DCI handling (corrects problem introduced in develop)
Conflicts:
	cmake_targets/CMakeLists.txt
	targets/SIMU/USER/oaisim_functions.c

Summary of changes:
- bug fixes: random access, crash on physicalConfigDedicated)
- some work on the UE to have it functional again
- IQ record and playback (work from Nokia)
  see documentation at: https://gitlab.eurecom.fr/oai/openairinterface5g/merge_requests/244

Conflicts:
	targets/DOCS/oai_L1_L2_procedures.pdf

Merge branch 'fix_ue' of https://gitlab.eurecom.fr/florian.kaltenberger/openairinterface5g into fix_ue

making oaisim_nos1 compile

physicalConfigDedicated may be legitimately NULL at some places
with the current code.

A cleaner solution is needed (we should always have a dedicated
config, initialized with values from the 3GPP specs, not have
a NULL as we do now).

Even if the old UE is not found, we have to cancel the random access.

Merge branch 'fix_ue' of https://gitlab.eurecom.fr/florian.kaltenberger/openairinterface5g into fix_ue

Conflicts:
	targets/DOCS/oai_L1_L2_procedures.pdf

Summary of changes:

- minor changes in RA code (functionality not changed, only notation)
- automatic indentation of some files (with indent -kr)
- bugfixes for TDD in RRU (IF4p5) and timing statistics of fronthaul and
  compression

changing of notation for Random-Access procedure to match documentation. Function remains the same. Indentation (-kr) run on all files in LAYER2/MAC

Summary of changes:
- fix a bug with Timing Advance.
  This should improve the stability of the connection
  (for now, only the scenario with one connected UE works).
- use RRC Release 14.3
- add some T tracers, minor fixes for T