Add the support for all unicode APIS SQLConnectW, SQLExecDirectW, ... and soon. The implementation could be as follows: - Driver must talk to server to/from through Unicode later - And in case of ANSI calls, convert them to multi byte before sending it to server and vice versa when returning back. - The best way could be to have a ANSI APIs(SQLConnectA, SQLExecDirectA,..) on top of Unicode APIs.
