[RFC] Supporting Queues / Messaging Pipelines across Cloud Providers (Ex: AWS SQS)

## Feature Request

A commonly used feature in Cloud Platforms is their message-passing/queueing services, such as
* [AWS](https://aws.amazon.com/sqs/): SQS
* [Azure](https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-azure-and-service-bus-queues-compared-contrasted): [Service-Bus, Storage Queues]
* [GCP](https://cloud.google.com/pubsub/docs/choosing-pubsub-or-cloud-tasks): [Cloud Tasks, Cloud Pub-Sub]

These are often used in conjunction with their other services, such as Storage (Ex: to send a message-notification automatically when a new file is uploaded to a Container/Bucket) and Compute (Ex: To pass information between different compute instances, or to take an action whenever a new file is uploaded to Storage). However, it is a pain right now to deal with the different CSP's syntaxes for using these queues, and would be convenient if we could centralize how we carry out at least basic operations like:
1. Read `n` messages from queue
2. Add new messages into the queue
3. Flush the queue / Delete `n` items from the queue

La issue non indica file del repository, test o punti di ingresso. Inizia individuando le astrazioni dei provider di Libcloud e le API delle risorse esistenti tra provider, quindi confronta le operazioni di base sulle code elencate per AWS, Azure e GCP. Il completamento dovrebbe includere un design concordato e il supporto per la lettura, l’aggiunta e l’eliminazione dei messaggi tra i provider interessati.

Scritto dal modello di indicizzazione a partire dal testo della issue.