feat: new method in response builder to add a play directive with metadata

[kinisoftware]

Description

I just add a new method to the response builder to be able to pass as param an audio metadata to the play directive.

Motivation and Context

I have a skill where I need to display metadata on AudioPlayer. At first, I did this replicating the code in the addAudioPlayerPlayDirective method. Once it worked I decided to add a new helper method in the response builder to cover that scenario.

Testing

First of all, I replicated the code from addAudioPlayerPlayDirective adding the line for the audio item metadata. I tested that on my Echo Show 5 (and other people did as well). Once it worked, I moved that code to a new method in the ResponseBuilder class in the sdk. I decided to refactor the code a little bit so both addAudioPlayerPlayDirective use the same final code to build the directive. I installed the dependency in local and tested it as a I did with my first version on my own code.

Screenshots

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
• [x] I have added tests to cover my changes
• [x] 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.

[sattpat]

LGTM. Had one Nit comment. Thanks for the PR!!