Added new files for IF-module purposes (still to complete), review some configuration procedure for FAPI-like approach. Code compile

Merge branch 'develop-nb-iot-mac' of https://gitlab.eurecom.fr/oai/openairinterface5g into develop-nb-iot-mac

Sincronization with NICK work on the same branch

First implementation of FAPI-like P5 configuration for the PHY layer. PHY_Config_t structure, modified NB_rrc_mac_config_req_eNB for triggering the IF_Module PHY_config_req function. Some common config. and all the dedicated configuration are missed

Merging mac branch to RRC branch for IF-Module implementation(still not completed). Solve some bugs. Now move to mac branch for continue implementation

Conflicts:
	openair1/PHY/impl_defs_lte_nb_iot.h

adding PHY_Config structure for FAPI-like PHY configuration, still to finish the function call. The code compile

develop_integration_w22 into develop

Summary of changes:
- UE:
  * TDD multiplexing
  * TDD autotest
  * bug fixes: power control management for Msg3, logging
- eNB:
  * CCE allocation fixes
  * S1U port in some configuration files set to 2152 (was 2153)
- support for RedHat enterprise linux 7 and derivatives (CentOS, ...)
  (work provided by RedHat)

See merge request !198

Merge remote-tracking branch 'origin/feature-143-support-enterprise-linux-7' into develop_integration_w22

Signed-off-by: Frank A. Zdarsky <fzdarsky@redhat.com>

- rename UE_NO_LOG to DISABLE_LOG_X
  because the name is misleading. The full software
  is impacted, not only the UE part
- same for compilation option ---ue-no-log
  that becomes --disable-log
- keep LOG_X for the standard case, that is the
  case without DISABLE_LOG_X where printf has been
  put. Two reasons:
  * printf is not realtime friendly
  * keep behavior similar for other users who may
    be troubled by different logs that don't add
    any benefit to previous logs

The port to use should be 2152, not 2153.

add broadcast channel function for NB-IoT/Tail-biting convolutional coding/rate matching/gold sequence/pilots generation function

Signed-off-by: Frank A. Zdarsky <fzdarsky@redhat.com>