This adds a file_serving mount called "scripts" that loads files from a module's scripts/ directory. This is used by Puppetserver to serve content and file metadata for these files. This is part of a larger story around loading scripts from the scripts/ module directory, and loading other static files from files/.
Users can now access files in the {{scripts/}} directory of a module using the new {{scripts}} file mount when using Puppet APIs to load file content and metadata.