Foreman » Smart Proxy

Fixes #15942 - dns module and providers use updated di config.

fixes #15244 - provide a CNAME api

This allows all common DNS operations to be handled from within the
Foreman infrastructure. The requirement for assistance from a Microsoft
colleague is no longer required.

Fixes #13544: Support IPv6 in DNS

Fixes #13536 - working ptr's for dnscmd

Fixes #12209: introduced basic support for di in dns module

DNS record class interface has been cleaned up with validation and type
parsing logic moved into the controller layer, resulting in separate
create and delete methods for A and PTR records.