BIND : Add an option to bind to set max-ncache-ttl

[Benoit221]

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Is your feature request related to a problem? Please describe.
When using traefik with acme in dns challenge, the process try to request some txt record to verify if they could be created. Without the max-ncache-ttl instruction, the fail request shoul be cached for 10800 seconds

Describe the solution you'd like
A clear and concise description of what you want to happen.
When i set max-ncache-ttl in options segment of named.conf to 30, the request finish to actualise and acme is working. If not acme fail after 1200 seconds.

Describe alternatives you've considered
I could change the TTL for acme for renew, but for new certificate, it need long time to be working.

Best regards,
B LORAND