Add additional data source to dhcp

[bdraco]

Proposed change

Since many routers provide PTR entries for devices on the local network, we have
enough data to find the hostname, mac, and ip to populate dhcp discovery
data quickly without having to wait. This provides another avenue to get the data
which can allow the devices to be available at onboarding for networks that
provide PTR entries. Additionally this helps close the gap for users who
cannot use scapy due to the root requirement.

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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• This PR fixes or closes issue: fixes #
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[MartinHjelmare]

Looks good!

[bdraco]

Thank you!

[bdraco]

Running one more performance test before merge, but looking good 👍

[bdraco]

Testing looks good.