Speed up Ansible tests

Move Molecule Vagrant tests over to QEmu runners on Linux boxes
"Dog-food" the Vagrant VMs
Accelerate linting of Ansible code as well

ansible/roles/init/molecule/ubuntu16/molecule.yml

@@ -1,8 +0,0 @@
-driver:
-  name: vagrant
-  provider:
-    name: libvirt
-platforms:
-  - name: test-ubuntu16-init
-    image: ubuntu:16.04
-    box: generic/ubuntu1604

ansible/roles/init/molecule/ubuntu16/verify.yml

@@ -1,11 +0,0 @@
-- hosts: all
-  tasks:
-    - name: Read init file
-      ansible.builtin.slurp:
-        path: /etc/default/console-setup
-      register: __slurped
-
-    - name: Validate desired string is present
-      assert:
-        that: >-
-          'ACTIVE_CONSOLES="/dev/tty1"' in ( __slurped["content"] | b64decode )

ansible/roles/init/molecule/ubuntu18/molecule.yml

@@ -4,5 +4,6 @@ driver:
     name: libvirt
 platforms:
   - name: test-ubuntu18-init
-    image: ubuntu:18.04
-    box: generic/ubuntu1804
+    box: boxen/ubuntu-18.04-x86_64
+    provider_options:
+      driver: qemu