Feature: Add support for unstitched Samsung Gear 360 images

[neuhaus]

The Samsung Gear 360 camera stores the images on the MicroSD card unstitched as two round fisheye pictures next to each other.

Examples:

• https://www.svetandroida.cz/media/2017/07/360_0029.jpg
• https://www.dropbox.com/s/l1s780dytz9xspf/samsung_360_raw.JPG?dl=0
• http://developer.samsung.com/forum/board/thread/file.do?attachmentId=24356

It would be great if Valiant360 would be able to also handle this image format in addition to the equirectangular images.

It would have to cut the image into two halves and then deskew them somehow. Any ideas on how this could be achieved?

[ftoledo]

+1, i want to avoid the samsung software for stitch...