testing: Added botan/rw-cert scenario

testing/tests/botan/rw-cert/hosts/carol/etc/strongswan.conf

@@ -0,0 +1,11 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+swanctl {
+  load = botan pem x509 revocation constraints pubkey
+}
+
+charon-systemd {
+  load = nonce botan pem x509 revocation constraints pubkey curl kernel-netlink socket-default updown vici
+
+  rsa_pss = yes
+}