Custom image template should transfer cloned VHDs to new storage account

_From @mmarch on February 2, 2017 23:29_

[rds-update-rdsh-collection](https://github.com/Azure/azure-quickstart-templates/tree/master/rds-update-rdsh-collection) template should be copying the source image (the template VHD) to the new storage account (currently when it creates new RDSH VMs it places cloned VHDs in the same storage account where the source VHD is).

This template: [201-vm-custom-image-new-storage-account](https://github.com/Azure/azure-quickstart-templates/tree/master/201-vm-custom-image-new-storage-account) - does that. It's a matter of running the ImageTransfer.ps1 script in a VM (and we do have infra VMs available, e.g. broker VM, where this can run).

_Copied from original issue: mmarch/rds-templates#29_