[RT#43439 'include' a whole directory when creating BIND zone file

Multiple RT tickets have raised this issue. [RT#43439] [RT#16699] [RT#28992] [RT#2730]

One user is a large ccTLD. Today their provisioning relies on re-writing named.conf and re-configuring They use include files heavily, would like an option to include all the files in a directory, rather than having to list them all.