Add config entry for AirVisual

[bachya]

Breaking change

The config schema for AirVisual has changed; users who configure AirVisual via configuration.yaml will need to update. Additionally, in order to protect the AirVisual cloud API, scan_interval is no longer configurable for this integration.

Proposed change

This PR adds a config entry for AirVisual. It does not include config options; that will come in a future PR.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example entry for configuration.yaml:

# Example configuration.yaml
airvisual:
  api_key: !secret airvisual_api_key

Additional information

• This PR fixes or closes issue: N/A
• This PR is related to issue: N/A
• Link to documentation pull request: Add docs for AirVisual config entry home-assistant.io#12166

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• Untested files have been added to .coveragerc.

The integration reached or maintains the following Integration Quality Scale:

• No score or internal
• 🥈 Silver
• 🥇 Gold
• 🏆 Platinum

[Kane610]

The PR could be simplified by splitting out the options flow and using default values

[bachya]

@Kane610 Anything else you want to see here?

[Kane610]

Nearly there 👍

[Kane610]

Looks good 👍🏻 Just one user step left in tests.

[bachya]

Thanks, @MartinHjelmare. I’m out of the country for a week; I’ll take care of these notes when I return.