Fixes #3276. Adornment.Bounds/FrameToScreen

[tig]

Fixes

• Fixes Adornment.Bounds and Adornment.FrameToScreeen are incorrect #3276

Proposed Changes/Todos

• Write some that test the current v2_develop version that prove it works.
• Simplify FindDeepestView to NOT have the out params. Modify callers to call view.FrameToScreen on the returned view instead.
• Fix bugs mentioned here: Fixes #2489. Build scrolling into View. #3254 (comment)

Pull Request checklist:

• I've named my PR in the form of "Fixes #issue. Terse description."
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• I conducted basic QA to assure all features are working