test(inspec): verify map.jinja dump

We store validated `map.jinja` dump under the profile `files`
directory to access them with `inspec.profile.file('filename')` to
validate the content of the generated mapdata file.

The YAML files contain a value specific to each minion, its hostname,
so we use string format to expand `%{hostname}`.

The `default` inspec profile need to depends on `share` to access the
`system` and `salt_minion` libraries.

test/integration/default/inspec.yml

@@ -6,6 +6,9 @@ title: openssh formula
 maintainer: SaltStack Formulas
 license: Apache-2.0
 summary: Verify that the openssh formula is setup and configured correctly
+depends:
+  - name: share
+    path: test/integration/share
 supports:
   - platform-name: debian
   - platform-name: ubuntu