bump tf framework version, introduce embedded structs

[davidbloss]

Issues

Changelog

Bump TF Framework version and demonstrate that embedded struct tags work. Paves way for refactoring

• [X] List your changes here
• [X] Make a changie entry

Tophatting

Test config file

data "opslevel_domains" "all" {}

data "opslevel_domain" "one" {
  identifier = data.opslevel_domains.all.domains[0].id
}

output "all" {
  value = data.opslevel_domains.all.domains
}

output "one" {
  value = data.opslevel_domain.one
}