Clarify guidelines on Bring-Your-Own-Storage

[mikekistler]

Some teams report that the current language is confusing, e.g. "Is "Bring Your Own Storage" a design pattern or service/API/library?"

We should try to clarify that it is the customer that creates and stores the data into an Azure Storage account and then just provides the location of the data to the API.

[mikekistler]

I think the way to handle this is to create a "Bring Your Own Storage" topic in the ConsiderationsForServiceDesign that provides the context and rationale for the guidelines.

[JeffreyRichter]

Yes, and maybe just a 1 or 2 sentence intro to the section in the guidelines too (in case people don't see the considerations section)?