SQL_NUMERIC_STRUCT was not available until ODBC 3.0
SQL_NUMERIC_STRUCT was not available until ODBC 3.0

Also add a prototype for ResolveNumericParam for readability.

gavioto/psqlodbc,hlinnaka/psqlodbc,gavioto/psqlodbc,hlinnaka/psqlodbc,hlinnaka/psqlodbc,gavioto/psqlodbc