GODRIVER-1136 Backport "Specify behavior where connection string contain auth database but no credentials"

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• Closed

TOOLS-2292 Specifying default database in URI triggers auth failure

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• Closed

DRIVERS-637 Specify behavior where connection string contain auth database but no credentials

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• Implementing

GODRIVER-868 Authentication failure when specifying database in connection string

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• Closed

GODRIVER-870 Add better error message when connecting with authdb and no user

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• Closed