Feat/queuefactory

[asleire]

Fixes #1

Public changes:

• Added a public interface ICloudQueueFactory which has the purpose of providing instances of CloudQueue
• Added a second constructor to AzureStorageQueuesTransport which ICloudQueueFactory as a parameter instead of CloudStorageAccount
• Added two extension methods to StandardConfigurer<ITransport> which take ICloudQueueFactory as a parameter

Internal changes:

• Refactored AzureStorageQueuesTransport to use ICloudQueueFactory internally instead of a CloudStorageAccount
• Added an internal utility class CloudQueueClientQueueFactory which implements ICloudQueueFactory using an instance of CloudQueueClient (which is provided by CloudStorageAccount)

No breaking changes

[asleire]

I wasn't sure whether to create the interface ICloudQueueFactory or simply use a Func<string,Task<CloudQueue>>. A Func would've been easier to use, but I still feel like an interface is the neater way to go.

[mookid8000]

Ah, neat!

One thing though: I think it would be more Rebus-like to pull the required ICloudQueueFactory from Rebus' configuration container ("injectionist").

I'll add a few inline comments... just a sec

[mookid8000]

Cool, thanks! 👍 your contribution is out as Rebus.AzureQueues 0.4.0 on NuGet.org now 😄

[asleire]

Awesome, thanks!