This is one of the single largest reductions in boilerplate items because of the nature of the change. Unfortunately, a lot of cases won't see *too* much improvement since most DatFiles use Rom heavily.
This is yet another boilerplate reduction AS WELL AS a reduction for unnecessary field names (mostly due to my misunderstanding of my own implementation)
This has the added benefit of clearing out a lot of boilerplate for new DatItem types, since DiskArea only pertains to the Disk type and DataArea only pertains to the Rom type
