added rabbitmq helpers and setup command

rmq_helper/queues.py

@@ -0,0 +1,19 @@
+import json
+
+from pika.adapters.blocking_connection import BlockingChannel
+
+from .extension import with_pika_channel
+
+
+@with_pika_channel
+def ensure_queue_exists(name: str, channel: BlockingChannel = None):
+    channel.queue_declare(queue=name)
+
+
+@with_pika_channel
+def queue_publish(queue_name: str, message, channel: BlockingChannel = None):
+    ensure_queue_exists(queue_name, channel=channel)
+
+    body = json.dumps(message)
+    body_bytes = body.encode('utf-8')
+    channel.basic_publish(exchange='', routing_key=queue_name, body=body_bytes)