Improve/fix RFC3442 entries and add tests

- Generate the rfc3442 words using a filter plugin, instead of Jinja
- basic sanity test when running plugin standalone
- Improve testing by creating/binding to a bridge0 interface in
  molecule docker container, then verifying that it's running
- Add ntp option
- multiplatform support

Change-Id: I7c2c3081e8919174dd29b3ab2fdd27b4f6eb843a
diff --git a/molecule/default/verify.yml b/molecule/default/verify.yml
index 1a4bfdc..aedd158 100644
--- a/molecule/default/verify.yml
+++ b/molecule/default/verify.yml
@@ -6,7 +6,12 @@
 
 - name: Verify
   hosts: all
+
   tasks:
-  - name: example assertion
+
+  - name: Populate service facts
+    service_facts:
+
+  - name: isc-dhcp-server is running
     assert:
-      that: true
+      that: ansible_facts.services["isc-dhcp-server.service"]["state"] == "running"