Found by valgrind

UE_list_t is now used as a separate list. It can be e.g. used in the
scheduler to mark groups of users. The original UE_list_t is renamed to
UE_info_t to reflect that it is a container for information about UEs.

When a header is changed, all including files need to be recompiled,
too. Thus, including a header needlessly all over the place drives
compile times up without any reason.

ENABLE_ITTI macro removal, modified telnet server to support all executables, modified record player to finalize switch to run-time option and allow usage with any device

	-BUGFIX: CD/DU F1 split

The timer code used to trigger periodic statistics message sending used
ITTI. Together with a high frequency reporting (e.g. 1ms), this resulted
in high CPU usage. This commit reimplements this:
* using a thread that is synchronized to the RU (if there is no MAC, we
  assume there is no RU generating a tick so we create the tick source
  ourselves)
* no RB trees but plain arrays
* smaller interface for users
* slight user interface changes
* remove stopped timer state: such timer might be simply removed
* remove one-shot timers

	M3AP ASN1 source spec updated

	ACKNOWLEDGEMENT:
 	1. This commit was developed at Vicomtech (https://www.vicomtech.org) under UE project CDN-X-ALL: "CDN edge-cloud computing for efficient cache and reliable streaming aCROSS Aggregated unicast-multicast LinkS"
 	2. Project funded by Fed4FIRE+ OC5 (https://www.fed4fire.eu)
Signed-off-by: Javier Morgade <javier.morgade@ieee.org>

remove RRC_VERSION macros, simplify build-oai and CMakefile.txt accordingly, get rid of remaining compilation warnings (opt module improperly merged and patch asn1c files with tests against max 64 bits integer value)

	-MBMS scheduler developed (oneFrame allocations implemented at this time)
	-UE DSLCH schedulers updated: if an eMBMS session running UE DTCH, DCCH will be only scheduled at non MBSFN sufbframes
	-eMBMS L2 procedures implemented
	-Dedicated MBMS PDCP pipes src/sink enabled (only for TUN)
	-BUGFIX eMBMS MAC procedures (wrong indexing at few loops)
	-ENB FAPI updated to enable dynamic MBSFN configurations through M2AP (RRC<->MCE)

	ACKNOWLEDGEMENT:
 	1. This commit was developed at Vicomtech (https://www.vicomtech.org) under UE project CDN-X-ALL: "CDN edge-cloud computing for efficient cache and reliable streaming aCROSS Aggregated unicast-multicast LinkS"
 	2. Project funded by Fed4FIRE+ OC5 (https://www.fed4fire.eu)
Signed-off-by: Javier Morgade <javier.morgade@ieee.org>

Bug fix of drx_config == PrNothing is now handled. Bug fix for dci0_ongoing not working. To investigate

	-- asn1 dissectors ETSI TS 136 331 V14.2.2 (2017-05)
	-- schedule_SI_MBMS
	-- ue_decode_si_mbms

When a phone loses connection, it should not simply be removed but first
CU should be informed which will send a ContextRelCmd. Correspondingly,
when the RRC releases the UE, it does not send a UE Context Release Req

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

abort execution when an unknown option is passed via the command line: add config_check_cmdlineopt API to config module, create lte-softmodem-common.c source to remove duplicate code in lte-softmodem.c and lte-uesoftmodem.c, fix segfaults in exec_function of lte-uesoftmodem

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

Incoming slice configuration changes are buffered in an intermediate structure.
The MAC scheduler periodically polls the agent about changes. If there has been
a slice configuration change, apply it.