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/ide/src/fill/net.ts

@@ -0,0 +1,3 @@
+import { Net } from "@coder/server";
+
+export = new Net();