added ITA Scanner IMC/IMV pair to tnccs-20 and tnccs-20-block scenarios

testing/tests/tnc/tnccs-20-block/hosts/moon/etc/strongswan.conf

@@ -17,3 +17,13 @@ charon {
     }
   }
 }
+
+libimcv {
+  plugins {
+    imv-scanner {
+      closed_port_policy = yes
+      tcp_ports = 22
+      udp_ports = 500 4500
+    }
+  }
+}