Sample for building multi platform projects

[neonailol]

Context

This is a full sample of building the multiplatform kotlin project (common, js, jvm. native)

• common module with shared logic, and expected declarations, and shared test cases
• js module, with actual implementation, and set up testing environment via node and quint
• jvm module, with actual implementation, and set up testing environment via testng
• native module, with actual implementation, and set up testing environment via application build

Contributor Checklist

• [x] Base the PR against the develop branch
• [x] Make sure that all commits are signed off to indicate that you agree to the terms of Developer Certificate of Origin.
• [x] Provide integration tests to verify changes from a user perspective
• [x] Provide unit tests to verify logic
• [x] Ensure that tests pass locally: ./gradlew check --parallel

[neonailol]

@StefMa updated pr, please look at it when you have time