Add support for CDN

[RMPall]

PR Checklist

• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.
• My code follows the code style of this project.
• I ran lint checks locally prior to submission.
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Description

• Add variables to support cdn profile creation.
• Needs to be merged along with Add support for cdn Adding Azure CDN aztfmod/terraform-azurerm-caf#726.

Does this introduce a breaking change

• YES
• NO

Testing

• Tested and added a sample configuration tfvars to Add support for cdn Adding Azure CDN aztfmod/terraform-azurerm-caf#726.

[ghost]

All CLA requirements met.

[arnaudlh]

LGTM