AFF4 (Advanced Forensic Format 4) read-only disk image reader.
AFF4 is a ZIP-based container format with RDF/Turtle metadata. Disk images
are stored as chunked "bevies" (ZIP segments). This crate supports
NullCompressor, DeflateCompressor, Snappy, and LZ4 frame compression.
Images may be direct aff4:ImageStreams or aff4:Map-backed, where a Map
redirects virtual addresses to ImageStream regions, Zero-fill, or SymbolicStreamFF.