Add option to reverse switch behaviour in KMTronic

[dgomes]

Proposed change

Addresses issue #47443

Some of KMTronic models expose the relay 3 contacts (NO, COM, NC). Usually you use a relay with NO and COM (for failsafe reasons), but you can also use NC and COM since it is exposed. This PR adds the option "reverse" in order to work in systems where NC and COM are used.

NC=Normally Connected
NO=Normally Open
COM=Common

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

Additional information

• This PR fixes or closes issue: fixes KMTRONIC integration - display reversed status #47443
• This PR is related to issue:
• Link to documentation pull request:

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.

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

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[balloob]

Removing this from the milestone as it's a new feature.

[dgomes]

it's a feature fixing an issue 😅

[MartinHjelmare]

Looks good!