Make it all work again.

Previous iterations and even a release were all broken. The module works again,
sorry for the interlude.

- Giving up on params and moving to module_data (WIP)
- Change the Package and Service references to the static 'bind' name
- Add a meager amount of test coverage

data/osfamily/Debian.yaml

@@ -0,0 +1,13 @@
+---
+bind::params::supported: true
+bind::params::bind_user: 'bind'
+bind::params::bind_group: 'bind'
+bind::params::bind_package: 'bind9'
+bind::params::bind_service: 'bind9'
+bind::params::nsupdate_package: 'dnsutils'
+
+bind::confdir: '/etc/bind'
+bind::cachedir: '/var/cache/bind'
+bind::rndc: true
+
+bind::updater::keydir: '/etc/bind/keys'