added cert to snakes

snakes/cert.json

@@ -0,0 +1,4 @@
+{ 
+    "path":"./cert.pfx",
+    "password": ""
+}

snakes/pfxTest.js

@@ -0,0 +1,16 @@
+
+const https = require('https');
+const fs = require('fs');
+const port = 8000;
+
+console.log("Listening on " + port);
+
+const options = {
+    pfx: fs.readFileSync('cert.pfx')
+};
+
+https.createServer(options, (req, res) => {
+    console.log("Request from " + (req.socket ? req.socket.remoteAddress : "NULL"));
+    res.writeHead(200);
+    res.end('hello world\n');
+}).listen(port);