It is currently not possible to create an Azure Fileshare through a .NET API, so the way it is done is to use PowerShell through Microsoft.IdentityModel.Clients.ActiveDirectory.
This works when the version of WindowsAzure.Storage is exactly 6.1.0, but PowerShell throws some error message when it is a higher version.
Need to find some way of creating a fileshare programatically if it doesn't exist, as downgrading the version of WindowsAzure.Storage is not an option.