* Each BSC_ConnectionHandler emulates a BSC and handles one TCP/CBSP
conn.
* Each MME_ConectionHandler emulates an MME and handles one SCTP/SBc-AP
conn.
* ECBE related functionalities are moved to its own file
ECBE_Components.ttcn.
* CBS_Message is moved to its own file since it is used by all modules.
Related: OS#4945
Change-Id: Ia0300a2ae69bdf604373dbc484537958413c79a2