Feature: Separate host and group variables resources.

[nbering]

Would solve problems with:

• setting variables by dynamic maps or lists
• setting variables where count= may be required
• setting a variable in the root module, to attach to a host declared in a submodule

# This is not a resource that exists now, just an example of what could be added.
resource "ansible_host_var" "example" {
    inventory_hostname = "db.example.com"
    key                = "db_password"
    value              = "testing1234"
}

Would require changes to the dynamic inventory script as well, because it would have to understand the resource type, and somehow merge the ansible_host.vars and ansible_host_var values.