IT is confirmed. For two days this week, 1,000 Golkar Party cadres are slated to attend the party's convention at Jakarta's Hilton Hotel. The plush and spacious hall chosen for the moment is indication enough that what follows will be no small gathering. But the convention's most climactic moment will unfold when delegates place their ballots, votes will determine which of the five competing figures—Akbar Tandjung, Wiranto, Surya Paloh, Pra