Ability to drop-in bind::zone from other modules

[optiz0r]

Right now, it doesn't seem possible to have one puppet site module configure a bind server, and have another site module drop in a bind::zone conditionally (in this case I'm looking at a consul. forwarder only on hosts running consul) because bind::view has to be explicitly and statically configured with the list of zones within to serve. I've been trying to think of a way to solve this, and the best thing I can come up with for now with minimal backwards compatibility break is:

• Switch view templating to use something like concat, with all the existing content dropped in by a single fragment
• Add a new bind::view_zone define to map a zone into a view like:

  bind::view_zone { 'consul':
    zones => ['consul.'],
    views => ['local'],
  }
  

• Have the bind::view_zone type drop a fragment with an additional include line for each zone/view combination.

If I were to do this work and raise a PR for the changes, would you be willing to accept it?

edit: I see this module is already using concat, and writing all views to a single views.conf file. That makes it significantly harder to achieve this.