MGCP_Emulation: More complete implementation

* re-introduce connection table
* introduce unitdata_cb for connectionless MGCP messages (like AUEP)
* rename MGCP_Emulation_CT members to avoid clashes with other similar
  component names when using "multiple inheritance"
* Use HostName/PortNumber types on MGCP_conn_parameters
* allow "bind to local UDP port only, permit any UDP source port" behavior
* implement expect matching criteria + expect matching only on CRCX
* add helper function f_create_mgcp_expect() like in other Emulations

Change-Id: I953a91e663648715fa4fe98acacca393c8747001
2 files changed