Backup-DbaDatabase - Use Stop-Function to support EnableException for unverified databases

[andreasjordan]

Type of Change

• Bug fix (non-breaking change, fixes Restore-DbaDatabase\Test-DbaBackupInformation - EnableException doesn't change warning to error if the files are already owned by another database on the instance #9240 )
• New feature (non-breaking change, adds functionality, fixes # )
• Breaking change (affects multiple commands or functionality, fixes # )
• Ran manual Pester test and has passed (.\tests\manual.pester.ps1)
• Adding code coverage to existing functionality
• Pester test is included
• If new file reference added for test, has is been added to github.com/dataplat/appveyor-lab ?
• Unit test is included
• Documentation
• Build system

See issue for details.

Before (with -EnableException):

After (with -EnableException):

After (wihout -EnableException):

[potatoqualitee]

ahh k! ty!