testing: Add ikev2/net2net-iptfs scenario

testing/tests/ikev2/net2net-iptfs/hosts/moon/etc/strongswan.conf

@@ -0,0 +1,13 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+swanctl {
+  load = pem pkcs1 revocation constraints pubkey openssl random
+}
+
+charon-systemd {
+  load = random nonce openssl pem pkcs1 revocation curl kernel-netlink socket-default updown vici
+  iptfs {
+    # set to 0.5 seconds for test purposes
+    init_delay = 500000
+  }
+}