Resolve File References

Problem:
While OpenAPI supports file references like $ref: './components/paths/myPath.yml this results in "invalid-ref No resolve defined" error, and the properties of the references are not loaded into the preview.

Solution:
A plugin that could read the files of a folder where the OpenAPI file exists, resolving the references would pull the OpenAPI properties into the preview. If necessary, the plugin might offer up a UI to select the default root path.