Create Get-PublishedTemplates

[SamErde]

Get-PublishedTemplates pulls a list of published templates with their name, OID, flags, enrollment flag, whenModified, revision, and minor revision. This should help us check if vulnerable templates are published and also ultimately check if the vulnerable version is in use by issued certificate requests.

Please review the bitwise checks for the template's flags and mspki-enrollment-flag properties to see if the logic is correct and returns all published templates in your test environments.

Contributes to #87.