MGCP: Extend tests significantly

We're now testing a variety of different permitted and illegal
transactions of the MGW.  Still lots of bits pending, particularly
also actual RTP flows.
diff --git a/mgw/MGCP_Test.cfg b/mgw/MGCP_Test.cfg
new file mode 100644
index 0000000..89bda62
--- /dev/null
+++ b/mgw/MGCP_Test.cfg
@@ -0,0 +1,28 @@
+[LOGGING]
+#FileMask := LOG_ALL | TTCN_DEBUG | TTCN_MATCHING | DEBUG_ENCDEC;
+#ConsoleMask := ERROR | WARNING | TESTCASE | TTCN_MATCHING | DEBUG_ENCDEC
+FileMask := LOG_ALL | TTCN_MATCHING;
+
+[TESTPORT_PARAMETERS]
+#*.*.udpReuseAddress := "yes";
+
+[MODULE_PARAMETERS]
+mp_local_udp_port := 2727;
+mp_local_ip:= "127.0.0.1";
+mp_remote_udp_port := 2427;
+mp_remote_ip:= "127.0.0.1";
+
+[MAIN_CONTROLLER]
+
+[EXECUTE]
+#MGCP_Test.TC_selftest
+MGCP_Test.TC_crcx
+MGCP_Test.TC_crcx_unsupp_mode
+MGCP_Test.TC_crcx_early_bidir_mode
+MGCP_Test.TC_crcx_unsupp_param
+MGCP_Test.TC_crcx_missing_callid
+MGCP_Test.TC_crcx_missing_mode
+MGCP_Test.TC_crcx_unsupp_packet_intv
+MGCP_Test.TC_crcx_sdp
+MGCP_Test.TC_mdcx_without_crcx
+MGCP_Test.TC_dlcx_without_crcx