code: async function getAllFiles(file, options) {
  	let files = await getFiles([file], options);
  	while (hasUnloaded(files)) files = await getFiles(files, options);
  	return files;
  }
docs: Get input file and its dependencies.
  
  @param {VinylFile|string} file		File to get for.
  @param {Object} options				Options object.
  @returns {Promise.<VinylFile[]>}		Vinyl files found.