Add the new websocket package (which is just a helper for kataras/neffos) and an example for go server, client, browser client and nodejs client. Add a .fossa.yml and the generated NOTICE file for 3rd-party libs. Update go.mod, go.sum. Update the vendor folder for pongo2 to its latest master as well

Former-commit-id: 89c05079415977d65e7328a1eb8a1c602d76f78a

_examples/websocket/basic/browserify/app.js

@@ -0,0 +1,61 @@
+const neffos = require('neffos.js');
+
+var scheme = document.location.protocol == "https:" ? "wss" : "ws";
+var port = document.location.port ? ":" + document.location.port : "";
+
+var wsURL = scheme + "://" + document.location.hostname + port + "/echo";
+
+var outputTxt = document.getElementById("output");
+function addMessage(msg) {
+  outputTxt.innerHTML += msg + "\n";
+}
+
+function handleError(reason) {
+  console.log(reason);
+  window.alert(reason);
+}
+
+function handleNamespaceConnectedConn(nsConn) {
+  const inputTxt = document.getElementById("input");
+  const sendBtn = document.getElementById("sendBtn");
+
+  sendBtn.disabled = false;
+  sendBtn.onclick = function () {
+    const input = inputTxt.value;
+    inputTxt.value = "";
+
+    nsConn.emit("chat", input);
+    addMessage("Me: " + input);
+  };
+}
+
+async function runExample() {
+  try {
+    const conn = await neffos.dial(wsURL, {
+      default: { // "default" namespace.
+        _OnNamespaceConnected: function (nsConn, msg) {
+          addMessage("connected to namespace: " + msg.Namespace);
+          handleNamespaceConnectedConn(nsConn);
+        },
+        _OnNamespaceDisconnect: function (nsConn, msg) {
+          addMessage("disconnected from namespace: " + msg.Namespace);
+        },
+        chat: function (nsConn, msg) { // "chat" event.
+          addMessage(msg.Body);
+        }
+      }
+    });
+
+    // You can either wait to conenct or just conn.connect("connect")
+    // and put the `handleNamespaceConnectedConn` inside `_OnNamespaceConnected` callback instead.
+    // const nsConn = await conn.connect("default");
+    // handleNamespaceConnectedConn(nsConn);
+    conn.connect("default");
+
+  } catch (err) {
+    handleError(err);
+  }
+}
+
+runExample();
+