Feature request: Add Traits to attributes on iOS

[d4vidi]

Describe your idea

Following an internal thread, there is a use case where the native selection state might be of interest. On xcode, that semantically shows under the Traits field (see image), which hints of that it might be possible to retrieve that through code.

[d4vidi]

@asafkorem would love to discuss this when you're available.

[d4vidi]

Will be supported in post-XCUITest support (Detox v21)