autoRotate prop to consider EXIF metadata of a photo taken from ios camera

[TheXardas]

Based on an issue #3
This module is used to rotate an image based on exif: https://github.com/blueimp/JavaScript-Load-Image
The side effect of this: src is been translated to base64 data-url instead of url. But can't figure our a better way.

Tested it locally on photos of a keyboard, but failed to add a rotated image of a cat, because i don't have a cat. :(

[treyhuffine]

Thanks for the PR @TheXardas! It looks like you forked the library, so in favor of not adding a new dependency at the present moment, I'm going to leave this change out of lightbox-react.