Create plme.js

plme.js

@@ -0,0 +1,16 @@
+const timeline = [];
+let replaying = false;
+let startTime = 0;
+
+export function record(packet) {
+  timeline.push(packet);
+}
+
+export function replay(callback) {
+  replaying = true;
+  startTime = performance.now();
+
+  timeline.forEach(pkt => {
+    setTimeout(() => callback(pkt), pkt.timestamp - timeline[0].timestamp);
+  });
+}