Add Queue class

[scott-w]

It would be nice to be able to represent SQS Queues as code and operate on the class.

An API that looks like:

from queue_fetcher import sqs


class SampleQueue(sqs.Queue):
    """
    """

    queue = 'QUEUE_KEY'
    region_name = 'eu-west-1'


my_queue = SampleQueue()
my_queue.send_message({'key': 'value', 'key2': 'value2'})

This would differ from the low-level QueueFetcher class in that it would deal with the details of setting up queue connections for higher-level code. We can also add features to QueueFetcher to just depend directly on these classes for custom code.