Support Azure Communication SMS

[hishamco]

This is still WIP

[MikeAlhayek]

Way too many files changes here. It seems that you copied all the SMS files into a new module. All you should need to do

1. Create OC.Sms.Azure module project
2. Implement the ISmsProvider and register it as described here https://docs.orchardcore.net/en/latest/docs/reference/modules/Sms/
3. You may want to add a provider for configuration provider using DefaultAzure key and another for Settings Azure. This way user can use a saas environment provider "if available" or they can enable one by providing their custom Azure instance settings like we did in the SMTP and Azure Email providers.

[hishamco]

As I said it's WIP, I'm working on it :)

[github-actions]

This pull request has merge conflicts. Please resolve those before requesting a review.

[github-actions]

It seems that this pull request didn't really move for quite a while. Is this something you'd like to revisit any time soon or should we close? Please comment if you'd like to pick it up.