Add data-driven utility for automatic relay configuration

[Karmastic]

This adds a tool algorelay that is used for checking and updating Relay configurations in DNS based on our process for mainnet. The tool works against a JSON input file providing details about relays that should be configured, and details about their configuration.
For production, this is paired with the foundation's afdb1 relay command.

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[tsachiherman]

looks good, one comment -
we. need to get rid of the zoneid; we should use the email/authkey + domainArgs to discover it dynamically and use it.
A misconfigured mismatch between the zoneid and domainArgs would Create a sub-domain under the zoneid, which is not what we want.

The functionality to extract the zoneid from the email/keyauth is already used in algons.

[Karmastic]

looks good, one comment -
we. need to get rid of the zoneid; we should use the email/authkey + domainArgs to discover it dynamically and use it.
A misconfigured mismatch between the zoneid and domainArgs would Create a sub-domain under the zoneid, which is not what we want.

The functionality to extract the zoneid from the email/keyauth is already used in algons.

Can you make those change in this PR?