* Resource for a Windows Security Identifier (SID)
* Integration tests for security_identifier resource
* Address rubocop violations
* Improve security_identifier from PR feedback
* Update security_identifier tests
* Improve security_identifier unit tests
* Fix unit tests fpr security_identifier resource
* More security_identifier unit tests
* Add docs page for security_identifier resource
* Fix issues with documentation
* Improve docs
Link to Microsoft reference page, and use their term 'trustee' instead of 'entity' where applicable.
* Change exists to exist
* Test appveyor file changes.
Signed-off-by: Jared Quick <jquick@chef.io>
