SwiftUI compatibility

[rebeloper]

What are you trying to achieve with this library exactly? Please describe.

Have created a YouTube video on how to use it in SwiftUI.

https://youtu.be/giCNUK9ryTo?si=ud1nu2px4acQ0IFO

Feel free to add it to your README

[ajayjapan]

@rebeloper seems like a prime candidate to make a package that has a dependency against TOCropViewController.

@TimOliver I saw your comment mentioning you weren't planning on adding SwiftUI support in 2020. Any changes?

[TimOliver]

No changes here. It'd be a nice thing to have, but I have so many different projects on my plate that I simply don't have the time. 🥲

If anyone wants to make a PR for it here as an optional, independent dependency, that would be great. :)