CIS Login tests

[tboggiano]

A New PR

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Changes this PR brings

• CIS Check Ensure 'CHECK_POLICY' Option is set to 'ON' for All SQL Authenticated Logins
• CIS CHeck Ensure 'CHECK_EXPIRATION' Option is set to 'ON' for All SQL Authenticated Logins Within the Sysadmin Role
• CIS Check Ensure 'MUST_CHANGE' Option is set to 'ON' for All SQL Authenticated Logins for new logins
• Cleaned up two tests two user @().count instead of if for $nulls, much cleaner, BuiltIn Admin and SAExist

Please add below the changes that this PR covers. It doesnt need an essay just the bullet points :-)

[tboggiano]

Close 671
Close 670
Close 669

[tboggiano]

Ignore the fact I edited the workspace file and accidently checked it in. I thought it would cool to have the PSScriptAnalyzer stuff in my other dba* projects.