Add rotation for viewer widget

[Gigas002]

This draft PR is a follow-up from #2334 and #2330, and it introduces a rotation property for viewer widget.
Right now it includes basic stuff and I think it's best behavior is when using together with ContentFit::None, however, all the other ContentFit's are not working as good as this one, and that especially noticable when using Fill (try zooming in/out and changing window sizes when the image is rotated and you'll see).
Would be glad if @DKolter or anyone else could help with further implementation for this :)

[Gigas002]

A post to keep a track on the state of PR, what's working and what's not.
A problem I came up with and can't overcome, is that the rotated image doesn't respect updated layout. This results in incorrect behavior on all content_fit modes, except for none. This is especially noticable when trying to change windows sizes with rotated image on a fill view:

2024-09-30.21-01-58.mp4

I didn't notice other problems, it's the only blocker for this PR to be ready for review