Correctly fix aliases quoting logic (#206)

We were previously incorrectly adding double quotes for the alias values.
According to the man page it's not required. However, there is a requirement if
its a command being pipe.

In addition, the man page mentions this for the alias name:

  The  name  is  a  local  address (no domain part).  Use double quotes when the
  name contains any special characters such as whitespace, `#', `:', or `@'. The
  name is folded to lowercase, in order to make database lookups case
  insensitive.

This includes logic to support this automatically.

- Add new tests for aliases testing all types
- Convert all serverspec tests to inspec
- Add Github actions
- Update platforms to test

Signed-off-by: Lance Albertson <lance@osuosl.org>

test/integration/sasl_auth_none/controls/sasl_auth_none.rb

@@ -0,0 +1,17 @@
+control 'sasl_auth_none' do
+  describe file '/etc/postfix/sasl_passwd' do
+    its('content') do
+      should cmp <<~EOF
+        # Auto-generated by Chef.
+        # Local modifications will be overwritten.
+
+        smtp_sasl_passwd :
+        smtp_sasl_user_name :
+      EOF
+    end
+  end
+
+  describe postfix_conf '/etc/postfix/main.cf' do
+    its('smtp_sasl_password_maps') { should eq 'hash:/etc/postfix/sasl_passwd' }
+  end
+end