Support Right-to-Left localization

[n-studio]

For some symbols such as arrow.up.backward.and.arrow.down.forward.circle, SF Symbol suggests to use Right-to-Left localization to flip the symbol horizontally.

But .arrowUpBackwardAndArrowDownForwardCircle.localized(to: .rtl) will return nil.
Is Right-to-Left not supported?

[Steven Sorial]

@n-studio We do support localizing to RTL, but it's only possible if that symbol supports explicit localization. Unfortunately, Apple did not add support for that symbol, it will only be implicit (when the whole app is using a RTL locale).

If you are using UIKit, you can force it using imgView.semanticContentAttribute = .forceRightToLeft

[n-studio]

It works great! Thank you!