Added Node.js support.

src/nodejs/unit-http/http.js

@@ -0,0 +1,23 @@
+
+/*
+ * Copyright (C) NGINX, Inc.
+ */
+
+'use strict';
+
+const server = require('unit-http/http_server');
+
+const { Server } = server;
+
+function createServer (requestHandler) {
+    return new Server(requestHandler);
+}
+
+
+module.exports = {
+    Server,
+    STATUS_CODES: server.STATUS_CODES,
+    createServer,
+    IncomingMessage: server.ServerRequest,
+    ServerResponse: server.ServerResponse
+};