Add an extended validation parameter to the initializer which causes "expensive" (and otherwise unnecessary) validation on the file being read. This should include:
- Testing whether any streams share storage (same start sector)
- Testing whether FAT chains link together (shared storage again)
- Testing whether unused sectors and slack-space are truly blank
Add an extended validation parameter to the initializer which causes "expensive" (and otherwise unnecessary) validation on the file being read. This should include: