Revert "Remove unsupported and mostly non-functional Mssql support"

This reverts commit 5e1efc3144d4af3a907d3c79f1ea6b8975ddf453.

This sort of thing needs to be discussed.  Please do not self-approve changes like this.

Change-Id: I9eb9ea315d90584b7fe95db43a6759884f9506b5
Merge "Revert "Remove unsupported and mostly non-functional Mssql support""