BROOKFIELD — Over the last few years, the overgrowth of grass and weeds has vanished from Oakholm Farm, and people have returned to wander through its pastures and gardens or stroll along Quaboag Pond.Still a decades-old hay barn sits dark, dusty and empty. For now.In and around the old barn, Andrew Woodward has pictured his brewery and taproom taking shape over and over in his head for more than a year.In the broken foundation where a farm building once [...]