Add Support for Subscriptions ?

I have 1 Automation Account that manages about 11 subscriptions.  This module is great, but only works for items within the subscription the AA belongs to.  It would be awesome if there was an input variable for subscription, so one could set the context that way.

It would also be great if it were updated for Az vs the current AzureRM.

Thank you for this module and all of your hard work!