* offload PCAP writing to background thread
* use blocking_queue between writer and clients to make it thread-safe
* add basic test case
this fixes point 1-3 of #2161
this removes inline keyword from PCAP functions and puts all functions
into own C file
before forced inlining caused an issue when compiling for ARM on Ubuntu 19.10 on the RPi4
using gcc version 9.2.1
* Clang-formated UE, eNB and lib.
* Fixed compiling errors from clang-format.
* Fix linking issues introduced by clang-format
* Fix poor formating in initializing arrays of arrays.
* Fix mistake in conflict resolution on rm_turbo.c
* Re-apply clang format to gtpc_ies.h
- abstract UE object now consists of a radio, a PHY, and a stack layer
- add new stack abstraction layer that combines MAC, RLC, RRC, PDCP, NAS and GW
- PHY layer now has a single stack interface and does not talk to MAC and RRC seperatly