Workers communication

1. "send to worker1" : sends msg to worker1 the same msg will return back to main thread
2. "send to worker2" : sends msg to worker2 the same msg will return back to main thread and logs
3. "sent to port2 from worker1" : sends msg to worker1 that will forward to worker2 using port1, port2 will receives msg and worker2 sends back to main thread and logs
4. "sent to port1 from worker2" : sends msg to worker2 that will forward to worker1 using port2, port1 will receives msg and worker1 sends back to main thread and logs
5. ping2 and ping3 are messages passed across workers and main thread
6. Source