Add onewire humidity sensors connected via DS2438

[epenet]

Proposed change

OWFS/OWServer automatically provide adjusted humidity calculations for various humidity sensors connected to DS2438:

• Honeywell HIH3600
• Honeywell HIH4000
• Honeywell HIH5030
• Humirel HTM1735

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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Additional information

• This PR fixes or closes issue: fixes #
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Checklist

• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.

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