prepare for external EPC

See merge request oai/openairinterface5g!595

The following Merge Requests are included:

* MR 544: RRC Inactivity Timer testing
* MR 581: Remove deprecated build options
* MR 583: RRC: add an option to enable measurement reports
* MR 590: bugfix UE realtime bug

  -- scenarios were using FDD 5MHz conf file w/ active RRC inactivity timeout
  -- since we are waiting very long that UE is sync'ed w/ eNB, timeout occurs and UE is released
  -- solution is to disable timeouts in command line in scenario
  -- also python is fixed to handle properly wrong ping exits
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

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

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

Merge remote-tracking branch 'origin/issue425_buildsimplification' into develop_integration_2019_w21

Merge remote-tracking branch 'origin/RRC-Inactivity-timers-testing' into develop_integration_2019_w21

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

When pushing traffic with iperf the UE was crashing.

The argument passed to pthread_mutex_timedlock is absolute time based
on the CLOCK_REALTIME timer, not relative time. That seems to be the
root cause of the bug. (That there is a timeout is another story.)

This commit uses absolute value.

Also we separate cases between IS_SOFTMODEM_BASICSIM / IS_SOFTMODEM_RFSIM
and standard realtime UE. In the 'sim' modes we don't care about
timeout and just call pthread_mutex_lock. It seems to be the idea
of the original work. If not, then to be fixed.

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

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

 # Please enter the commit message for your changes. Lines starting

More build_oai cleanup, add a generic option "--build-lib" to build optional shared libraries (telnet server for example)

fix crash when attempting to use -d legacy softscope. Doesn't fix all problems but at least no crash and ready for anybody to fix diplay problems

Remove deprecated build options, now available as config options: noS1, basic_simulator. Remove DISABLE_LOG_X macros, disabling logs now available via disabling the T_TRACER

  -- in python: detection of a build failure, the tab should close nicely
  -- L2-nFAPi simulator: adding the num-ue-thread option
  -- Moved the VM destroy stage into the "VM-based test" branch.
  -- On "slave" job pipeline, moved the XML parsing after the git merge step so new test-cases are nicely taken care of.
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

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

  -- in python: detection of a build failure, the tab should close nicely
  -- L2-nFAPi simulator: adding the num-ue-thread option
  -- Moved the VM destroy stage into the "VM-based test" branch.
  -- On "slave" job pipeline, moved the XML parsing after the git merge step so new test-cases are nicely taken care of.
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

In the configuration file, to enable measurements, add:

    enable_measurement_reports = "yes";

Note that if x2 is enabled then the option 'enable_measurement_reports'
is not taken into account and the measurements are enabled.

Update doc, remove color escape sequences from logs (use character to identify message level), try to fix basic simu Pb

Fix NB_PATTERN_FILES and BUILD_OPTIONS in oai-ci-vm-tool, remove useless options (-t, basic_simulator, rf_simulator) as corresponding libraries always built

Remove deprecated build options, now available as config options: noS1, basic_simulator. Remove DISABLE_LOG_X macros, disabling logs now available via disabling the T_TRACER

Remove deprecated build options, now available as config options: noS1, basic_simulator. Remove DISABLE_LOG_X macros, disabling logs now available via disabling the T_TRACER

The following Merge Requests are included:

* MR 557 : Implement CDRX in FDD mode
* MR 571 : Improvement on documentation
* MR 572 : Fix CU/DU protocol split
* MR 574 : Fix a flexran free issue
* MR 578 : CI -- Improve OAI UE testing with USRP

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

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