Adding HelloWorld sample for Kotlin

[giusedroid]

Description

This PR adds an HelloWorld sample written in Kotlin. I translated the HelloWorld sample from Java to Kotlin.

Motivation and Context

A partner with expertise in Android development asked if it was possible to provide a Kotlin example.

Testing

1. I built the skill with the current config using gradle
2. I deployed the sample skill to a Lambda function in one of my AWS accounts and tested manually.

Screenshots (if appropriate)

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [x] My code follows the code style of this project
• [ ] My change requires a change to the documentation
• [ ] I have updated the documentation accordingly
• [x] I have read the README document
• [ ] I have added tests to cover my changes
• [ ] All new and existing tests passed

License

• [x] By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[hannesa2]

Yes please, I would love to see this on master

[giusedroid]

bumped all required deps.

[doiron]

We are not supporting Kotlin at the moment. will close this PR until we decide to add support

[hannesa2]

But you should support Kotlin, It is de facto standard for Android since ~2019 @doiron