SUP-20101 correct raritan check and add rsidual current

[nightwatcher74]

General information

This requests make 2 changes and add one additional feature/check:

• make humidity levels configurable
• do not create plugs if no information about plugs are available (till now the services become unknown)
• add a service for residual current.

see SUP-20101 for more information.

Thanks
Frank

[github-actions]

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[nightwatcher74]

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[nightwatcher74]

Will be correctly opend with two diffrenent requests,,,