implement --with-system-odbc on windows

Change-Id: I1757b9ce74277b1c11533f41caeafaf9b88658ef
try "Use system ODBC on MS Windows unless specifically overriden" again

Now that Noel has a working pattch for system ODBC on MS Windows

Change-Id: I11abb53486e45d9c7058c42011df41b5fad0fcde