feat(service): Adds HomeAssistant service

[iamajoe]

Description

#460 - Implements HomeAssistant service

Motivation and Context

The service will provide a way to interact with the automation system of HomeAssistant.

How Has This Been Tested?

Automated tests and through local home assistant webhooks.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation (no code change)
• Refactor (refactoring production code)
• Other

Checklist:

• My code follows the code style of this project.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.