feat(semantic-release): implement for this formula

* Based on `ssf-formula` (v0.3.0)
  - https://github.com/myii/ssf-formula/pull/5
* Unable to use `pillar.example` directly for testing
  - Used it as a basis for `test/salt/pillar/default.sls`
  - Brought useful changes back to `pillar.example`
* Fix: avoid `users/googleauth.sls` for `RedHat` & `Suse`
* Close #203

test/integration/default/README.md

@@ -0,0 +1,50 @@
+# InSpec Profile: `default`
+
+This shows the implementation of the `default` InSpec [profile](https://github.com/inspec/inspec/blob/master/docs/profiles.md).
+
+## Verify a profile
+
+InSpec ships with built-in features to verify a profile structure.
+
+```bash
+$ inspec check default
+Summary
+-------
+Location: default
+Profile: profile
+Controls: 4
+Timestamp: 2019-06-24T23:09:01+00:00
+Valid: true
+
+Errors
+------
+
+Warnings
+--------
+```
+
+## Execute a profile
+
+To run all **supported** controls on a local machine use `inspec exec /path/to/profile`.
+
+```bash
+$ inspec exec default
+..
+
+Finished in 0.0025 seconds (files took 0.12449 seconds to load)
+8 examples, 0 failures
+```
+
+## Execute a specific control from a profile
+
+To run one control from the profile use `inspec exec /path/to/profile --controls name`.
+
+```bash
+$ inspec exec default --controls package
+.
+
+Finished in 0.0025 seconds (files took 0.12449 seconds to load)
+1 examples, 0 failures
+```
+
+See an [example control here](https://github.com/inspec/inspec/blob/master/examples/profile/controls/example.rb).

test/integration/default/controls/config_spec.rb

@@ -0,0 +1,10 @@
+control 'users configuration' do
+  title 'should match desired lines'
+
+  describe file('/custom/buser') do
+    its('type') { should eq :directory }
+    it { should be_owned_by 'buser' }
+    it { should be_grouped_into 'primarygroup' }
+    its('mode') { should cmp '0750' }
+  end
+end

test/integration/default/inspec.yml

@@ -0,0 +1,14 @@
+name: default
+title: users formula
+maintainer: SaltStack Formulas
+license: Apache-2.0
+summary: Verify that the users formula is setup and configured correctly
+supports:
+  - platform-name: debian
+  - platform-name: ubuntu
+  - platform-name: centos
+  - platform-name: fedora
+  - platform-name: opensuse
+  - platform-name: suse
+  - platform-name: freebsd
+  - platform-name: amazon