[Image resizer] Add rotate and flip functionality

[niels9001]

Summary of the new feature/enhancement

Image resizer is great for resizing pictures in bulk. Flipping or rotating an image (e.g. horizontally or vertically) is still a manual effort by opening the picture in e.g. Photos app.

Proposed technical implementation details (optional)

It would be great if the Image Resizer UI would also provide a functionality in the UI to flip images in bulk, or rotate them. Can be in line with the functionality provided by the default Windows 10 Photos app:

This goes beyond 'resizing' images, but are often used (especially rotation).

[crutkas]

you can already bulk rotate in shell. How often do you need to bulk flip?

[crutkas]

I can't see Resizer doing this at a bulk setting.

[lucaslaricchia]

i need it now :(