testing: Added tnc/tnccs-20-ev-pt-tls scenario

testing/tests/tnc/tnccs-20-ev-pt-tls/hosts/dave/etc/strongswan.conf

@@ -0,0 +1,20 @@
+# /etc/strongswan.conf - strongSwan configuration file
+
+libimcv {
+  plugins {
+    imc-os {
+      push_info = no
+    }
+    imc-swima {
+      swid_pretty = yes
+    }
+  }
+}
+
+libtls {
+  suites = TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
+}
+
+pt-tls-client {
+  load = revocation constraints pem openssl curl nonce tnc-tnccs tnc-imc tnccs-20
+}