Add support for foreign language interface

See [Demo: Foreign language interface](../blob/e626dd3a667d9ed8e5079e9dd5a6eb9f563ba99c/inst/example/examples.md#foreign-language-interface)

Prototyping via Rcpp works but compiling of modules requires a standardised installation procedure which Modules ideally should support by providing appropriate functions. Same goes for the loading dynamic libraries, although that is already quite straightforward.

Start with the referenced inst/example/examples.md#foreign-language-interface demo and review the existing Rcpp prototype described in the issue. Determine the standardized installation and loading procedure Modules should provide for compiled modules and dynamic libraries; done means the foreign-language interface works through that procedure.

Written by the indexing model from the issue text.