Add new route to get scratch projects

This feature will add some functionality to the Scratch related projects such that the front-end can retrieve the folders within the folder based on the name of the drop-down.

This is a way to add a new variable so that the name of the folder within the main scratch folder is part of the request from the front-end.

The back-end will retrieve the folder names and send back the list of them to the front-end.

New route: /api/v1/scratch/project/{project-id}

In this case the {project-id} is the unique name from the drop-down menu.