Fix .Query() and .Invoke() on server for special connections and enhance exception text

[andreasjordan]

Type of Change

• Bug fix (non-breaking change, fixes # )
• 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

Part 1: Fix for connections to Azure SQL Database with token

In these connections, the databases part of the SMO is not usable and so it has to be used the ConnectionContext of the server to execute the Query.

Part 2: Better exception message

Old:

New:

[andreasjordan]

@potatoqualitee Is type-extensions.ps1 still used? I have not found a reference in the code and the code inside of that file is not active.

[andreasjordan]

Ok, found the reference and removed it. Let's see if that works...

[potatoqualitee]

looks good, thank you