Implement the Ability to Parse OpenAPI JSON

Implement the ability for the module to parse an OpenAPI JSON file and use it natively within the application.

A `src` variable option should be added to the Relax.cfc specification to allow this option.

The application should be able to process both *.json and *.cfm file extensions to allow the user to pipe in content from external files (e.g. fileRead()), should they wish to do so.