Setup queue event listener

[ldmi3i]

Here we need to:

1. Add Rabbit MQ library
2. Add Rabbit MQ connection package and struct
3. Add QueueEvent listener struct to listen for incoming events and request downstream service

For completing this issue we need settings from issue: #10

I propose request message structure like that:

{
     "notify_user" : true,
     "url": "link to file"
}

And response message:

{
     "notify_user" : true,
     "api_spec_doc": "result model"
}

In case of error send message to API gateway error queue something like that:

{
     "message" : "Link validation failed"
}

"notify user" field is needed to just pass information to the downstream service (to indicate is user notification required about complete)

[github-actions]

🎉 This issue has been resolved in version 1.0.0 🎉

The release is available on GitHub release

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