* Enable the Next button on keyboard to find next text field - ios
* Use the most top superview or allow user to specify
* Add message for IQKeyboard and stop the upward search as the ContainerViewController
* add ThirdPartyNotice.txt from Android repo
* remove the ThirdPartyNotices.txt file for now
* address Shane comments and use more efficient search for next field
* make the search modular and more generic to fit inside ViewExtensions.cs
* change signatures for tests
* add third party notice
* Change names, support RightToLeft, loop back to beginning
* add comment for IsRtl
* Use logical tree ordering, add more unit tests, and create horizontalstacklayoutstub
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Co-authored-by: TJ Lambert <tjlambert@microsoft.com>