stdlib : convert a string to a resource

Basic Info
Module Version: 8.1.0
Puppet Version: 7.14.0
OS Name/Version: Fedora

When building relationships between modules, it can be helpful to pass some resources by name.  With hiera, these resources are always represented as a string.  But nothing converts them back to the actual resource.

For example, I may want a specific element to notify another class.  If I instrument my class up so I can pass in a `notify_services` parameter, the string notification doesn't work as expected.   This will also make use of hiera a bit more familiar to folks coming from other systems.

Desired Behavior: A way to convert a string (defined in hiera) to a resource definition

Actual Behavior:

The string coming in isn't convertible to a resource in any clear way.