Kotlin Script, Version Catlogues, Kotlin Sample, Compose Sample

[Doomsdayrs]

Various things to ensure the library is up to date.

I likely will use this library in production soon, thus why I put effort into converting (it helps me understand how the app and library is designed)

[Robyer]

Hi, thanks for the PR.

I have some refactoring of the project in progress - specifically separating Leptonica and Tesseract as standalone projects/libraries to be consumed using prefab, but I had some problems with JitPack, so I need to finish these first.

Also I'm not ready to fully switch to Kotlin yet. Could you for now extract your modified sample into own module, let's say sample-ktx and create PR for it without affecting other modules code? I would merge that right now, then handle other things (like the migration from Groovy to Kotlin) later.