The long awaited rationalisation of the world's wine industry appears to have begun. Australia's big players were always going to be part of it either as acquirer or acquired. Chris Brook-Carter reports.      Australia's wine giants could face a make or break year as the pace of consolidation in the industry picks up. For companies such as Southcorp, BRL Hardy and Foster's, which owns Mildara Blass, it may be a case of buy or be bought, according to industry analysts.