Add Acme service

[KristijanL]

Is your feature request related to existing pfSense functionality that is missing from the API? Please describe.
https://docs.netgate.com/pfsense/en/latest/packages/acme/index.html

Is your feature request related to a problem? Please describe.
acme is not supported

Describe the solution you'd like
i would like the acme functionality to be supported 😄

Thanks for all the hard work!

[therevoman]

Thanks for all the hard work. I also would love to see the ACME package added to the api.