WinMAIL: Specific Port for smtp

The server port can now be configured with a frontcall method when using WinMain and smtp.

When using WinMail and smtp, you can now specify the smtp server port in the SetSmtp function. To define the port, use the host:port notation.

CALL ui.interface.frontCall("WinMail","SetSmtp", [id,
 "smtp.mycompany.com:1234"],[result])

The default port remains 25.