Submit request to delete Citrix Cloud account

Allow Citrix Cloud Full Administrator to submit request to delete their Citrix Cloud account. This functionality also allows them to seamlessly onboard a new Citrix Cloud account when required.

The documentation for this functionality can be found here: https://docs.citrix.com/en-us/citrix-cloud/citrix-cloud-management/allow-customers-to-delete-citrix-cloud-account.html