Add ingame.objects.Audio as discussed in poll #14

[Natuworkguy]

Add the ingame.objects.Audio feature to the library as requested by users in poll #14. This should provide an object/class that allows developers to manage and play audio within the InGame UI library.

Requirements:

• Design and implement an Audio object in the ingame.objects module.
• Ensure the object supports basic audio playback operations (play, pause, stop, volume control).
• Add documentation and example usage to the library docs.
• Write unit tests for the new feature.

Reference: poll #14 for community feedback and requirements.