* Fix dynamic framework support and fix binary compatibility of SkikoUIView

This change configures Kotlin Gradle
plugin to include a CInterop def file
(https://kotlinlang.org/docs/native-c-interop.html)
to fix linking a dynamic framework for iOS

Also helps with https://youtrack.jetbrains.com/issue/KT-60399
(at least in some cases). Internal discussion https://jetbrains.slack.com/archives/G017NLN12D8/p1689594898607469

* CR fix: use flatmap