Initial work is done

node_modules/peek-readable/lib/Deferred.js

@@ -0,0 +1,10 @@
+export class Deferred {
+    constructor() {
+        this.resolve = () => null;
+        this.reject = () => null;
+        this.promise = new Promise((resolve, reject) => {
+            this.reject = reject;
+            this.resolve = resolve;
+        });
+    }
+}