dns/bind: Added options to control recursion

[benyamin-codez]

Adds options to control recursion:

1. Adds an option to explicitly enable recursion, when unchecked sets recursion=no
2. Adds an option for allow-query-cache, which effectively controls recursion
3. Updated help and reformatted

Split from PR #4892.

Resolves #4887

[benyamin-codez]

@fichtner, just those last two unresolved convos methinks...

[benyamin-codez]

This PR also bumps the General model to v1.0.13, but leaving the message alone so as to avoid the required force-push...