Functionalities Added:
	- Modify RAR message to use number of repetitions configuration added in last commit
	- Configure msg3 with number of repetitions
	- DCI configuration for repetitions
	- Repeat MAC UL config each SF for the number of repetitions
	- PHY combining of repeated SF
Signed-off-by: Mohamed Gamal <mohammed.abdelkhalek.ext@orange.com>

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

For whatever reason most of the files had their permission
changed from 644 to 755, which is not wanted.

Remove a change about MSG2 and MSG4 because this is used not only in L2 FAPI simulator but also in real eNB.

Change not to watch timing in MSG2 and MSG4 procedure in L2 FAPI simulator because it's possible to differ timing(frame, subframe) between eNB and UE.

1. Modify all expressions using original LTE-RRC data types for new generated ones
2. Does not change any program logic

modifications for SRB0 to allow multiple UE contexts in case of delayed CCCH reception in CU/DU split (moved SRB0 from carrier to UE context)

removed assertion in MAC layer and adjusted generation of MSG4 to handle when CCCH message is not present. UL CCCH is now received in CU, but asserts. Need to add code in DU to handle scheduling of DL-CCCH in later subframe. In current state, DL-CCCH will only come out if it is ready for MSG$ transmission.

log.c simplification, fix usefull functionality which never worked, move all log code from openair2 to common

Remove compilation warnings, also fix telnet server compilation failure and NB-IoT shared lib compilation failure introduced when reviewing L1 sources  organization

Remove warnings popping up on:
    ./build_oai --eNB -w USRP

Maybe not always the best solution.