Mark deCONZ light type "On/Off Output" as a switch entity

[Kane610]

Breaking change

Migrating deCONZ light entities of type "On/Off Output" to switch from light platform as they are binary devices (only on/off).

Proposed change

Mark deCONZ light type "On/Off Output" as a switch entity
Convert entity types of light platform to switch platform

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

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[Kane610]

Thank you @bdraco 🎉