Load a module, if available, with no warnings if the module is not present.
This directive is only available for use in the global
(interchange.cfg) configuration file,
and will affect all websites running under the Interchange installation.
It will not work in a website's local (catalog.cfg)
This is just like Require and Suggest,
but will never cause a warning nor a message.
You can check for
The following would load the Archive::Zip module, if available.
A facility or extension, within Interchange, may check for that capability
later and adapt itself accordingly.
Capability module Archive::Zip