WIP: Private DNS Support

[jhisc]

Adding support for creating vnet linked Private DNS zones

[fabiendelpierre]

I don't care a whole lot, but I'm wondering if it makes sense for this to be part of this module, or if it should be a separate module. Feels unrelated to a virtual network I guess?

[jhisc]

I don't care a whole lot, but I'm wondering if it makes sense for this to be part of this module, or if it should be a separate module. Feels unrelated to a virtual network I guess?

Sadly this is going to be a standard part of vnet deployments moving forward.
Where an increasing number of DBaaS offerings are requiring us to create these zones. Given that they have a 1-2-1 relationship with Virtual Networks it seemed like an easier implementation for users if we put it in here.

[fabiendelpierre]

Okay, I figured that would be your answer, so no worries then!

[jhisc]

Thank you.
I'll hold off merging this in until @dutsmiller reviews. 2nd pair of eyes won't hurt