message: doc(image-stream): document that .getFromFilePath also resolves metadata
  See:
diff: @@ -31,7 +31,8 @@ const errors = require('../shared/errors');
  * @public
  *
  * @description
  - * This function resolves an object containing the following properties:
  + * This function resolves an object containing the following properties,
  + * along with various extra metadata:
  *
  * - `Number size`: The input file size.
  *
  @@ -55,6 +56,11 @@ const errors = require('../shared/errors');
  * const imageStream = require('./lib/image-stream');
  *
  * imageStream.getFromFilePath('path/to/rpi.img.xz').then((image) => {
  + * console.log(`The image display name is: ${image.name}`);
  + * console.log(`The image url is: ${image.url}`);
  + * console.log(`The image support url is: ${image.supportUrl}`);
  + * console.log(`The image logo is: ${image.logo}`);
  + *
  * image.stream
  * .pipe(image.transform)
  * .pipe(fs.createWriteStream('/dev/disk2'));
  