Implement fs module (#3)

* Implements the fs module

* Add stats object

* Add not implemented to createWriteStream

* Update mkdtemp to use tmp dir

* Unexport Stats

* Add client web socket for commands and restructure

packages/protocol/src/browser/modules/net.ts

@@ -0,0 +1,72 @@
+import * as net from "net";
+
+/**
+ * Implementation of Socket for the browser.
+ */
+class Socket extends net.Socket {
+
+	public connect(): this {
+		throw new Error("not implemented");
+	}
+
+}
+
+/**
+ * Implementation of Server for the browser.
+ */
+class Server extends net.Server {
+
+	public listen(
+		_port?: number | any | net.ListenOptions, // tslint:disable-line no-any so we can match the Node API.
+		_hostname?: string | number | Function,
+		_backlog?: number | Function,
+		_listeningListener?: Function,
+	): this {
+		throw new Error("not implemented");
+	}
+
+}
+
+type NodeNet = typeof net;
+
+/**
+ * Implementation of net for the browser.
+ */
+export class Net implements NodeNet {
+
+	public get Socket(): typeof net.Socket {
+		return Socket;
+	}
+
+	public get Server(): typeof net.Server {
+		return Server;
+	}
+
+	public connect(): net.Socket {
+		throw new Error("not implemented");
+	}
+
+	public createConnection(): net.Socket {
+		throw new Error("not implemented");
+	}
+
+	public isIP(_input: string): number {
+		throw new Error("not implemented");
+	}
+
+	public isIPv4(_input: string): boolean {
+		throw new Error("not implemented");
+	}
+
+	public isIPv6(_input: string): boolean {
+		throw new Error("not implemented");
+	}
+
+	public createServer(
+		_options?: { allowHalfOpen?: boolean, pauseOnConnect?: boolean } | ((socket: net.Socket) => void),
+		_connectionListener?: (socket: net.Socket) => void,
+	): Server {
+		return new Server();
+	}
+
+}