Test-DbaKerberos - Add comprehensive Kerberos diagnostics command (#9959)

Author: potatoqualitee

dbatools.psd1

@@ -675,6 +675,7 @@
         'Test-DbaComputerCertificateExpiration',
         'Test-DbaConnection',
         'Test-DbaConnectionAuthScheme',
+        'Test-DbaKerberos',
         'Test-DbaDbCollation',
         'Test-DbaDbCompatibility',
         'Test-DbaDbCompression',

dbatools.psm1

@@ -439,6 +439,7 @@ if ($PSVersionTable.PSVersion.Major -lt 5) {
         'Test-DbaDbCompatibility',
         'Test-DbaDbCollation',
         'Test-DbaConnectionAuthScheme',
+        'Test-DbaKerberos',
         'Test-DbaInstanceName',
         'Repair-DbaInstanceName',
         'Stop-DbaProcess',